Table of Contents

Locator Record

Title: Dietary Interview - Total Nutrients, Second Day (DR2TOT_C )
Contact Number: 1-866-441-NCHS
Years of Content: 2003 - 2004
First Published: September, 2006
Revised: November, 2007
Access Constraints: None
Use Constraints: None
Geographic Coverage: National
Subject:What we Eat in America: Individual Foods Files
Record Source: NHANES 2003 - 2004
Survey Methodology: NHANES 2003 - 2004 is a stratified multistage probability sample of the civilian non-institutionalized population of the U.S.
Medium: NHANES Web site; SAS transport files

Component Description

The objective of the dietary interview component is to obtain detailed dietary intake information from NHANES participants. The dietary intake data are used to estimate the types and amounts of foods and beverages consumed during the 24-hour period prior to the interview (midnight to midnight), and to estimate intakes of energy, nutrients, and other food components from those foods and beverages. Following the dietary recall, participants are asked questions on water consumption during the previous 24 hours, salt use, whether the person’s intake on the previous day was usual or unusual, and whether the respondent is on any kind of diet. Selected population subgroups are asked questions on frequency of fish and shellfish consumed during the past 30 days.

 
The dietary interview component, called What We Eat in America (WWEIA), is conducted as a partnership between the U.S. Department of Agriculture (USDA) and the U.S. Department of Health and Human Services (DHHS). Under this partnership, DHHS’ National Center for Health Statistics is responsible for the sample design and data collection and USDA’s Food Surveys Research Group (FSRG) is responsible for the dietary data collection methodology, maintenance of the databases used to code and process the data, and data review and processing.

What’s New with the 2003-2004 WWEIA Release: A number of additions and changes have occurred since the release of the WWEIA 2001-2002 data. The table below summarizes these changes. One of the most important changes is the release of two days of intake data for each participant. The first day (Day 1) is collected in the Mobile Examination Center (MEC) and the second day (Day 2) is collected by telephone 3 to 10 days later. Most MEC participants (87 percent) have 2 days of complete and reliable intakes. The release of 2 days of data will permit the estimation of usual (long-run average) nutrient intakes in order to assess diets in the U.S. The Institute of Medicine recommends that assessment of the diets of population groups in relation to Dietary Reference Intakes be based on usual intake distributions of nutrients (Institute of Medicine, 2000). A minimum of two nonconsecutive days of dietary intake data for at least a subsample of the individuals is necessary for a more accurate estimation of the usual intake of nutrients.

Table 1. Changes between WWEIA 2001-2002 and WWEIA 2003-2004
Item WWEIA 2001-2002 WWEIA 2003-2004
Number of days of intake data released 1 day 2 days
Nutrients included Food energy and 60 nutrients/food components Food energy and 62 nutrients/food components. Added vitamin E and added vitamin B12 included.
Food source (Where food obtained) Collected only in 2002; not publicly released. Collected and released.
Combination food types Values for 14 combination types Values for 15 combination types; added “chips with additions”.
Eating occasion names 18 values 20 values; 3 existing values modified and 2 new values.
Special diet variables Collected only in 2002; not publicly released. Collected and released.

Dietary Interview Data Files: Four data files were produced from the information collected in the dietary interview: two Total Nutrient Intake files and two Individual Foods files. Each file includes one day of intake data. The number “1” or “2” in the file name identifies the day (and mode) of the interview: 1 = first day (MEC), 2 = second day (phone). File names are the following: 

File Names for Dietary Interview Data
File Day 1 Day 2
Individual Foods File DR1IFF_C DR2IFF_C
Total Nutrient Intakes File DR1TOT_C DR2TOT_C

The nutrient amounts in these files reflect only nutrients obtained from foods and beverages, including sweetened water beverages. They do not include nutrients obtained from dietary supplements, medications, or plain drinking water.

Individual Foods Files (DR1IFF_C and DR2IFF_C): Contain detailed information about the types and amounts of individual foods reported by each participant, as well as amounts of nutrients from each food.

Two supporting files are also included with the Individual Foods Files: the Food Code Description file (DRXFCD_C) and the Modification Code Description file (DRXMCD_C). The DRXFCD_C file includes abbreviated descriptions (up to 60 characters) and complete descriptions (up to 200 characters) associated with each USDA food code identified in the Individual Foods Files. The DRXMCD_C file includes descriptions (up to 200 characters) associated with each modification code identified in the Individual Foods Files. Modification codes represent adjustments to predefined recipe ingredients that reflect more closely the food as described by the respondent. An appendix to the Individual Foods Files documentation provides SAS code examples that may be used to link the food code or the modification code description to the Individual Foods File.

Total Nutrient Intakes Files (DR1TOT_C and DR2TOT_C): Contain, for each participant, daily total energy and nutrient intakes from foods and beverages; the daily amount of water consumed; whether the amount of food consumed was usual, much more than usual, or much less than usual. The Day 1 file also includes information on salt use in cooking and at the table; whether the participant is currently on any kind of diet to lose weight or for another health-related reason and, if so, the type of diet; and for subsets of participants, information on frequency of fish and shellfish consumption. The names for both Day 1 and Day 2 variables are listed in Table 2.

This document (NHANES 2003-2004 Data Documentation for Total Nutrient Intakes Files) provides additional details important to understanding the content of the Total Nutrient Intakes Files (DR1TOT_C and DR2TOT_C). The Total Nutrient Intakes Files provide a summary record of total nutrient intakes for each individual. Each total intake record contains the following information: 

 

Eligible Sample

All NHANES participants are eligible for the dietary interview component. However, only children 1-5 years and women 16-49 years of age are eligible for the frequency of fish and shellfish consumption questions following the 24-hour recall and thus, their responses are collected.

 

Protocol and Procedure

The examination protocol and data collection methods are fully documented in the NHANES Dietary Interviewers Procedures Manuals (Centers for Disease Control and Prevention, 2002, Centers for Disease Control and Prevention, 2004).

Proxy interviews were conducted for survey participants less than six years of age. Assisted interviews were conducted with survey participants 6 to 11 years of age. Dietary interviews were conducted in English and Spanish. Translators were used to conduct interviews in other languages.

The in-person interview was conducted in a private room in the NHANES mobile examination center (MEC). A set of measuring guides (various glasses, bowls, mugs, household spoons, measuring cups and spoons, a ruler, thickness sticks, bean bags, and circles) was available in the MEC dietary interview room for the participant to use for reporting amounts of foods. Upon completion of the in-person interview, participants were given measuring cups, spoons, a ruler, and a food model booklet, which contained two-dimensional drawings of the various measuring guides available in the MEC, to use for reporting food amounts during the telephone interview. Telephone dietary interviews were collected 3 to 10 days following the MEC dietary interview but not on the same day of the week as the MEC interview. Any participant who did not have a telephone was given a toll-free number to call so that the recall could be conducted.

What We Eat in America data were collected using USDA’s dietary data collection instrument, the Automated Multiple Pass Method (AMPM) (Agricultural Research Service, USDA Automated Multiple-Pass Method for Dietary Recalls). The AMPM was designed to provide an efficient and accurate means of collecting intakes for large-scale national surveys. The AMPM is a fully computerized recall method that uses a 5-step interview outlined below:

  1. Quick List - Participant recalls all foods and beverages consumed the day before the interview (midnight to midnight).
  2. Forgotten Foods - Participant is probed for foods forgotten during the Quick List step.
  3. Time and Occasion - Time and eating occasion are collected for each food.
  4. Detail Cycle - For each food, a detailed description, amount eaten, and additions to the food are collected. Eating occasions and times between eating occasions are reviewed to elicit forgotten foods.
  5. Final Probe - Additional foods not remembered earlier are collected.

The AMPM includes an extensive compilation of standardized food-specific questions and possible response options. Routing of questions is based on previous responses. The AMPM is updated yearly to reflect the changing food supply and to address research needs from the data user community. Additional information about the AMPM is provided in Raper et al. (Raper, 2004).

The accuracy of the AMPM is currently being assessed in the USDA AMPM Validation Study using biomarker data. The data collection phase of the study, which includes 525 participants, has been completed. The extent of misreporting of energy and protein intakes will be determined by comparing estimated energy intake with total energy expenditure, and estimated protein intake with urinary nitrogen excretion. Total energy expenditure has been measured by the doubly-labeled water method. Preliminary findings show that the use of the AMPM resulted in a mean energy intake for the first cohort of 100 subjects that was within 2 percent of their total energy expenditure, as estimated by the doubly-labeled water technique, and suggest acceptable accuracy of reported intakes (Moshfegh, 2003, Rhodes, 2004).

For the procedures relevant to this component, please go to Survey Operations Manual, Consent Documents, Brochures at: http://www.cdc.gov/nchs/about/major/nhanes/nhanes2003-2004/current_nhanes_03_04.htm.

 

Quality Assurance & Quality Control

All dietary interviewers were required to complete an intensive one-week training course and to conduct supervised practice interviews before working independently in the field. Retraining sessions were conducted periodically and annually to reinforce the proper protocols and technique.

Interviewers were monitored throughout the data collection period. Monitoring consisted of the following:

 

Data Processing and Editing

Interview data files were sent electronically from the field and were imported into Survey Net, a computer-assisted food coding and data management system developed by USDA (Agricultural Research Service, USDA Automated Multiple-Pass Method for Dietary Recalls).

USDA's Food and Nutrient Database for Dietary Studies, 2.0 (FNDDS 2.0), was used for processing the 2003-2004 intakes (Agricultural Research Service, USDA Food and Nutrient Database for Dietary Studies 2.0). The FNDDS includes comprehensive information that can be used to code individual foods and portion sizes reported by participants and also includes nutrient values for calculating nutrient intakes. The underlying nutrient values for FNDDS 2.0 were based on values in the USDA National Nutrient Database for Standard Reference, release 18, produced by USDA’s Nutrient Data Lab (Agricultural Research Service, USDA National Nutrient Database for Standard Reference, Release 18). The FNDDS may be used in research projects using the NHANES 2003-2004 dietary intake data and also in other food intake studies. Additional information about the FNDDS and related tools is available on the Food Survey Research Group website (Agricultural Research Service, USDA Food and Nutrient Database for Dietary Studies 2.0).

Coders were required to pass a certification test after the initial training. They were routinely monitored to ensure quality and completeness of their work. Approximately 10 percent of the coder’s work was double-coded and adjudicated, if necessary.

After intake data were coded, various types of reviews were conducted to ensure the quality of the data. An overview of quality assurance procedures conducted during the data processing stage is available in Anand and Raper (Anand, 2006). Examples of reviews include the following:

During data processing, the following edits were made to ensure the logical consistency and analytic usefulness of the data:

 

Analytic Notes

Each Total Nutrient Intakes File (Day 1 and Day 2) contains one record for each participant. These files can be linked with other NHANES files by the respondent sequence number (SEQN).

Variable names: For data collected on both Day 1 and Day 2, variable names are differentiated by having the number “1” or “2” in the third position of the variable name to identify the collection day. For example, the name for the intake day of week is DR1DAY in the Day 1 file and DR2DAY in the Day 2 file. Table 2 lists the Day 1 and Day 2 variable names.

Names for the following variables are the same for both days:

Day 1 and Day 2 variable name Label
SEQN Respondent sequence number
WTDRD1 Dietary day one sample weight
WTDR2D Dietary two-day sample weight
DRABF Breast-fed infant (either day)
DRDINT Number of days of intake

Number of Intake Days Variable: Because two days of data are included in the 2003-2004 release, a variable has been added to indicate the number of days of intake available for each participant. The variable name is DRDINT.

Dietary Recall Status Code: A status code (DR1DRSTZ or DR2DRSTZ) is used in the file to indicate the quality and completeness of a survey participant's response to the dietary recall section. The codes are the following:

In addition to the status code described above, the variable DR1_300 and DR2_300 denotes the participant’s assessment of whether the amount of food consumed on the recall day was usual, much more than usual, or much less than usual.

Participants Reported Fasting: Three participants reported fasting during one of their intake collection days. Their dietary recall status for the fasting day is coded as “1” (complete and reliable). The total number of foods reported and all total nutrient intakes variables are coded as “0”. Values are present for other variables collected after the dietary recall, such as water consumption. By definition, no individual food consumption is reported in these cases, therefore, no records were included in the Individual Foods File for these individuals for the specific fasting day.

Special Diet Variable: This is the first WWEIA NHANES data release to include information on whether the participant is currently on any kind of diet to lose weight or for another health-related reason and, if so, the type of diet. The variable DRQSDIET identifies whether a participant is on a special diet. The variables DRQSDT1 through DRQSDT8 and DRQSDT91 identify the type of diet(s) that the participant is following. This information was also collected in 2002 but was not publicly released because of confidentiality issues concerning single-year data.

Note that responses to the type of diet were collected as "code all that apply”. A participant could report more than one type of diet, and all responses were recorded. The variable DRQSDT1 denotes the type of diet the participant followed specifically for weight loss purposes, which includes a variety of low calorie diets, low carbohydrate diets and/or high protein diets. If the participant reported being on a high protein diet for the purpose of gaining weight or muscle building instead of weight loss, the response was coded in variable DRQSDT8 (Weight gain/Muscle building diet).

Sample weights for dietary intake data: The NHANES participants were selected on the basis of a national probability design. In order to increase the number of participants for specific demographic groups, a multi-stage, unequal probability of selection design was implemented. The NHANES oversamples blacks, Mexican Americans, low income whites, adolescents 12-19 years, and persons 60 years and older. Sample weights are constructed that encompass the unequal probabilities of selection, as well as adjustments for non-participation by selected sample persons. In order to produce national, representative estimates, the appropriate sample weights must be used.

For the 2003-2004 NHANES, there were 12,761 persons selected; of these 9,643 were considered respondents to the MEC examination and data collection. However, only 9,034 of the MEC respondents provided complete dietary intakes for Day 1. Furthermore, of those providing the Day 1 data, only 8,354 provided complete dietary intakes for Day 2.

Most analyses of NHANES data use data collected in the MEC and the variable WTMEC2YR should be used for the sample weights. However, for the dietary data, different sample weights are recommended for analysis. Although attempts are made to schedule MEC exams uniformly throughout the week, proportionally more exams occur on weekend days than on weekdays. Because food intake can vary by day of week, use of the MEC weights would disproportionately represent intakes on weekends.

A set of weights WTDRD1 is provided that should be used when an analysis uses the Day 1 dietary recall data (either alone or when Day 1 nutrient data are used in conjunction with MEC data). The set of weights WTDRD1 is applicable to the 9,034 respondents with Day 1 data. Day 1 weights were constructed by taking the MEC sample weights (WTMEC2YR) and further adjusting for (a) the additional non-response and (b) the differential allocation by day of the week for the dietary intake data collection. These Day 1 weights are more variable than the MEC weights, and the sample size is smaller, so estimated standard errors using Day 1 data and Day 1 weights are larger than standard errors for similar estimates based on MEC weights.

When analysis is based on both days of dietary intake, only the 8,354 sample persons have valid data. The NHANES protocol requires an attempt to collect the second day of dietary data at least 3 days after the first day, but the actual number of days between the two days is variable. A set of adjusted weights, WTDR2D, is to be used only when analysis uses both Day 1 and Day 2 dietary data. This two-day weight was constructed for the 8,354 respondents by taking the Day 1 weights (WTDRD1) and further adjusting for (a) the additional non-response for the second recall and (b) for the proportion of weekend-weekday combinations of Day 1 and Day 2 recalls.

Note that all sample weights are person-level weights and each set of weights should add to the same population control total as the MEC weights (WTMEC2YR). In addition, the MEC weights (WTMEC2YR) are appropriate for use in the analysis of the fish and shellfish consumption data (i.e., variables DRD340, DRD350A-K, DRD350AQ-JQ, DRD360, DRD370A-V, and DRD370AQ-UQ) located in the Day 1 Total Nutrient Intake File (DR1TOT_C), if no other dietary data are included in the analysis. Additional explanation of sample weights and appropriate uses are included in the NHANES Analytic Guidelines. Please also refer to the Analytic Guidelines for further details on other analytic issues at:
http://www.cdc.gov/nchs/about/major/nhanes/nhanes2003-2004/analytical_guidelines.htm.

 

References

Codebook and Frequencies

SEQN - Respondent sequence number

Variable Name:
SEQN
SAS Label:
Respondent sequence number
English Text:
Respondent sequence number.
Target:
Both males and females 0 YEARS - 150 YEARS

WTDRD1 - Dietary day one sample weight

Variable Name:
WTDRD1
SAS Label:
Dietary day one sample weight
English Text:
Dietary day one sample weight
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
887.3695022 to 293828.97477 Range of Values 9034 9034
. Missing 609 9643

WTDR2D - Dietary two-day sample weight

Variable Name:
WTDR2D
SAS Label:
Dietary two-day sample weight
English Text:
Dietary two-day sample weight
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
708.63828227 to 374736.26978 Range of Values 8354 8354
. Missing 1289 9643

DR2DRSTZ - Dietary recall status

Variable Name:
DR2DRSTZ
SAS Label:
Dietary recall status
English Text:
Dietary recall status
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Reliable and met the minimum criteria 8220 8220
2 Not reliable or not met the minimum criteria 52 8272
4 Reported consuming breast-milk 134 8406
5 Not done 1237 9643
. Missing 0 9643

DR2EXMER - Interviewer ID code

Variable Name:
DR2EXMER
SAS Label:
Interviewer ID code
English Text:
Interviewer ID code
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
11 to 97 Range of Values 8406 8406
. Missing 1237 9643

DRABF - Breast-fed infant (either day)

Variable Name:
DRABF
SAS Label:
Breast-fed infant (either day)
English Text:
Indicates whether the sample person was an infant who was breast-fed on either of the two recall days.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 141 141
2 No 8893 9034
. Missing 609 9643

DRDINT - Number of days of intake

Variable Name:
DRDINT
SAS Label:
Number of days of intake
English Text:
Indicates whether the sample person has intake data for one or two days.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Day 1 only 680 680
2 Day 1 and day 2 8354 9034
. Missing 609 9643

DR2DAY - Intake day of the week

Variable Name:
DR2DAY
SAS Label:
Intake day of the week
English Text:
Intake day of the week
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Sunday 1586 1586
2 Monday 1947 3533
3 Tuesday 1605 5138
4 Wednesday 1670 6808
5 Thursday 562 7370
6 Friday 652 8022
7 Saturday 384 8406
. Missing 1237 9643

DR2LANG - Language SP/Proxy used mostly

Variable Name:
DR2LANG
SAS Label:
Language SP/Proxy used mostly
English Text:
The SP/Proxy spoke mostly:
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 English 7379 7379
2 Spanish 931 8310
3 English and Spanish 84 8394
4 Other 0 8394
. Missing 1249 9643

DR2MNRSP - Main respondent for this interview

Variable Name:
DR2MNRSP
SAS Label:
Main respondent for this interview
English Text:
Who was the main respondent for this interview?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 SP 6110 6110
2 Mother of SP 1886 7996
3 Father of SP 120 8116
4 Wife of SP 52 8168
5 Husband of SP 8 8176
6 Daughter of SP 28 8204
7 Son of SP 8 8212
8 Grandparent of SP 36 8248
9 Friend, Partner, Non Relative 0 8248
10 Translator, not a HH member 0 8248
11 Child care provider, Caretaker 9 8257
12 Other Relative 34 8291
13 Other specify 4 8295
77 Refused 0 8295
99 Don't know 4 8299
. Missing 1344 9643

DR2HELPD - Helped in responding for this interview

Variable Name:
DR2HELPD
SAS Label:
Helped in responding for this interview
English Text:
Who helped in responding for this interview
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 SP 242 242
2 Mother of SP 223 465
3 Father of SP 29 494
4 Wife of SP 120 614
5 Husband of SP 21 635
6 Daughter of SP 14 649
7 Son of SP 2 651
8 Grandparent of SP 7 658
9 Friend, Partner, Non Relative 14 672
10 Translator, not a HH member 2 674
11 Child care provider, Caretaker 8 682
12 Other Relative 49 731
13 No one 7559 8290
14 Other specify 2 8292
77 Refused 0 8292
99 Don't know 4 8296
. Missing 1347 9643

DR2TNUMF - Number of foods

Variable Name:
DR2TNUMF
SAS Label:
Number of foods
English Text:
Total number of foods reported in the individual foods file
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 42 Range of Values 8354 8354
. Missing 1289 9643

DR2TKCAL - Energy (kcal)

Variable Name:
DR2TKCAL
SAS Label:
Energy (kcal)
English Text:
Energy (kcal)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 9265 Range of Values 8220 8220
. Missing 1423 9643

DR2TPROT - Protein (gm)

Variable Name:
DR2TPROT
SAS Label:
Protein (gm)
English Text:
Protein (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 407.31 Range of Values 8220 8220
. Missing 1423 9643

DR2TCARB - Carbohydrate (gm)

Variable Name:
DR2TCARB
SAS Label:
Carbohydrate (gm)
English Text:
Carbohydrate (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 1197.06 Range of Values 8220 8220
. Missing 1423 9643

DR2TSUGR - Total sugars (gm)

Variable Name:
DR2TSUGR
SAS Label:
Total sugars (gm)
English Text:
Total sugars (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 789.29 Range of Values 8220 8220
. Missing 1423 9643

DR2TFIBE - Dietary fiber (gm)

Variable Name:
DR2TFIBE
SAS Label:
Dietary fiber (gm)
English Text:
Dietary fiber (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 85.9 Range of Values 8220 8220
. Missing 1423 9643

DR2TTFAT - Total fat (gm)

Variable Name:
DR2TTFAT
SAS Label:
Total fat (gm)
English Text:
Total fat (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 375.11 Range of Values 8220 8220
. Missing 1423 9643

DR2TSFAT - Total saturated fatty acids (gm)

Variable Name:
DR2TSFAT
SAS Label:
Total saturated fatty acids (gm)
English Text:
Total saturated fatty acids (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 149.64 Range of Values 8220 8220
. Missing 1423 9643

DR2TMFAT - Total monounsaturated fatty acids (gm)

Variable Name:
DR2TMFAT
SAS Label:
Total monounsaturated fatty acids (gm)
English Text:
Total monounsaturated fatty acids (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 150.244 Range of Values 8220 8220
. Missing 1423 9643

DR2TPFAT - Total polyunsaturated fatty acids (gm)

Variable Name:
DR2TPFAT
SAS Label:
Total polyunsaturated fatty acids (gm)
English Text:
Total polyunsaturated fatty acids (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 101.403 Range of Values 8220 8220
. Missing 1423 9643

DR2TCHOL - Cholesterol (mg)

Variable Name:
DR2TCHOL
SAS Label:
Cholesterol (mg)
English Text:
Cholesterol (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2956 Range of Values 8220 8220
. Missing 1423 9643

DR2TATOC - Vitamin E as alpha-tocopherol (mg)

Variable Name:
DR2TATOC
SAS Label:
Vitamin E as alpha-tocopherol (mg)
English Text:
Vitamin E as alpha-tocopherol (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 72.23 Range of Values 8220 8220
. Missing 1423 9643

DR2TATOA - Added alpha-tocopherol (Vitamin E) (mg)

Variable Name:
DR2TATOA
SAS Label:
Added alpha-tocopherol (Vitamin E) (mg)
English Text:
Added alpha-tocopherol (Vitamin E) (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 56.25 Range of Values 8220 8220
. Missing 1423 9643

DR2TRET - Retinol (mcg)

Variable Name:
DR2TRET
SAS Label:
Retinol (mcg)
English Text:
Retinol (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 19369 Range of Values 8220 8220
. Missing 1423 9643

DR2TVARA - Vitamin A, RAE (mcg)

Variable Name:
DR2TVARA
SAS Label:
Vitamin A, RAE (mcg)
English Text:
Vitamin A as retinol activity equivalents (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 19854 Range of Values 8220 8220
. Missing 1423 9643

DR2TACAR - Alpha-carotene (mcg)

Variable Name:
DR2TACAR
SAS Label:
Alpha-carotene (mcg)
English Text:
Alpha-carotene (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 14781 Range of Values 8220 8220
. Missing 1423 9643

DR2TBCAR - Beta-carotene (mcg)

Variable Name:
DR2TBCAR
SAS Label:
Beta-carotene (mcg)
English Text:
Beta-carotene (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 36576 Range of Values 8220 8220
. Missing 1423 9643

DR2TCRYP - Beta-cryptoxanthin (mcg)

Variable Name:
DR2TCRYP
SAS Label:
Beta-cryptoxanthin (mcg)
English Text:
Beta-cryptoxanthin (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 7094 Range of Values 8220 8220
. Missing 1423 9643

DR2TLYCO - Lycopene (mcg)

Variable Name:
DR2TLYCO
SAS Label:
Lycopene (mcg)
English Text:
Lycopene (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 142385 Range of Values 8220 8220
. Missing 1423 9643

DR2TLZ - Lutein + zeaxanthin (mcg)

Variable Name:
DR2TLZ
SAS Label:
Lutein + zeaxanthin (mcg)
English Text:
Lutein + zeaxanthin (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 50768 Range of Values 8220 8220
. Missing 1423 9643

DR2TVB1 - Thiamin (Vitamin B1) (mg)

Variable Name:
DR2TVB1
SAS Label:
Thiamin (Vitamin B1) (mg)
English Text:
Thiamin (Vitamin B1) (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 10.78 Range of Values 8220 8220
. Missing 1423 9643

DR2TVB2 - Riboflavin (Vitamin B2) (mg)

Variable Name:
DR2TVB2
SAS Label:
Riboflavin (Vitamin B2) (mg)
English Text:
Riboflavin (Vitamin B2) (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 14.594 Range of Values 8220 8220
. Missing 1423 9643

DR2TNIAC - Niacin (mg)

Variable Name:
DR2TNIAC
SAS Label:
Niacin (mg)
English Text:
Niacin (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 163.371 Range of Values 8220 8220
. Missing 1423 9643

DR2TVB6 - Vitamin B6 (mg)

Variable Name:
DR2TVB6
SAS Label:
Vitamin B6 (mg)
English Text:
Vitamin B6 (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 12.188 Range of Values 8220 8220
. Missing 1423 9643

DR2TFOLA - Total Folate (mcg)

Variable Name:
DR2TFOLA
SAS Label:
Total Folate (mcg)
English Text:
Total Folate (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3663 Range of Values 8220 8220
. Missing 1423 9643

DR2TFA - Folic acid (mcg)

Variable Name:
DR2TFA
SAS Label:
Folic acid (mcg)
English Text:
Folic acid (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3440 Range of Values 8220 8220
. Missing 1423 9643

DR2TFF - Food folate (mcg)

Variable Name:
DR2TFF
SAS Label:
Food folate (mcg)
English Text:
Food folate (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 956 Range of Values 8220 8220
. Missing 1423 9643

DR2TFDFE - Folate, DFE (mcg)

Variable Name:
DR2TFDFE
SAS Label:
Folate, DFE (mcg)
English Text:
Folate as dietary folate equivalents (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 6057 Range of Values 8220 8220
. Missing 1423 9643

DR2TVB12 - Vitamin B12 (mcg)

Variable Name:
DR2TVB12
SAS Label:
Vitamin B12 (mcg)
English Text:
Vitamin B12 (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 260.34 Range of Values 8220 8220
. Missing 1423 9643

DR2TB12A - Added vitamin B12 (mcg)

Variable Name:
DR2TB12A
SAS Label:
Added vitamin B12 (mcg)
English Text:
Added vitamin B12 (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 29.725 Range of Values 8220 8220
. Missing 1423 9643

DR2TVC - Vitamin C (mg)

Variable Name:
DR2TVC
SAS Label:
Vitamin C (mg)
English Text:
Vitamin C (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 1115.6 Range of Values 8220 8220
. Missing 1423 9643

DR2TVK - Vitamin K (mcg)

Variable Name:
DR2TVK
SAS Label:
Vitamin K (mcg)
English Text:
Vitamin K (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2217.3 Range of Values 8220 8220
. Missing 1423 9643

DR2TCALC - Calcium (mg)

Variable Name:
DR2TCALC
SAS Label:
Calcium (mg)
English Text:
Calcium (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 5620 Range of Values 8220 8220
. Missing 1423 9643

DR2TPHOS - Phosphorus (mg)

Variable Name:
DR2TPHOS
SAS Label:
Phosphorus (mg)
English Text:
Phosphorus (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 6829 Range of Values 8220 8220
. Missing 1423 9643

DR2TMAGN - Magnesium (mg)

Variable Name:
DR2TMAGN
SAS Label:
Magnesium (mg)
English Text:
Magnesium (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 1187 Range of Values 8220 8220
. Missing 1423 9643

DR2TIRON - Iron (mg)

Variable Name:
DR2TIRON
SAS Label:
Iron (mg)
English Text:
Iron (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 126.95 Range of Values 8220 8220
. Missing 1423 9643

DR2TZINC - Zinc (mg)

Variable Name:
DR2TZINC
SAS Label:
Zinc (mg)
English Text:
Zinc (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 217.53 Range of Values 8220 8220
. Missing 1423 9643

DR2TCOPP - Copper (mg)

Variable Name:
DR2TCOPP
SAS Label:
Copper (mg)
English Text:
Copper (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 35.768 Range of Values 8220 8220
. Missing 1423 9643

DR2TSODI - Sodium (mg)

Variable Name:
DR2TSODI
SAS Label:
Sodium (mg)
English Text:
Sodium (mg) (adjusted for salt use in food preparation)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 16951 Range of Values 8220 8220
. Missing 1423 9643

DR2TPOTA - Potassium (mg)

Variable Name:
DR2TPOTA
SAS Label:
Potassium (mg)
English Text:
Potassium (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 14768 Range of Values 8220 8220
. Missing 1423 9643

DR2TSELE - Selenium (mcg)

Variable Name:
DR2TSELE
SAS Label:
Selenium (mcg)
English Text:
Selenium (mcg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 665.8 Range of Values 8220 8220
. Missing 1423 9643

DR2TCAFF - Caffeine (mg)

Variable Name:
DR2TCAFF
SAS Label:
Caffeine (mg)
English Text:
Caffeine (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2120 Range of Values 8220 8220
. Missing 1423 9643

DR2TTHEO - Theobromine (mg)

Variable Name:
DR2TTHEO
SAS Label:
Theobromine (mg)
English Text:
Theobromine (mg)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 1096 Range of Values 8220 8220
. Missing 1423 9643

DR2TALCO - Alcohol (gm)

Variable Name:
DR2TALCO
SAS Label:
Alcohol (gm)
English Text:
Alcohol (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 645.1 Range of Values 8220 8220
. Missing 1423 9643

DR2TMOIS - Moisture (gm)

Variable Name:
DR2TMOIS
SAS Label:
Moisture (gm)
English Text:
Moisture (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 10481.84 Range of Values 8220 8220
. Missing 1423 9643

DR2TS040 - SFA 4:0 (Butanoic) (gm)

Variable Name:
DR2TS040
SAS Label:
SFA 4:0 (Butanoic) (gm)
English Text:
SFA 4:0 (Butanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 7.595 Range of Values 8220 8220
. Missing 1423 9643

DR2TS060 - SFA 6:0 (Hexanoic) (gm)

Variable Name:
DR2TS060
SAS Label:
SFA 6:0 (Hexanoic) (gm)
English Text:
SFA 6:0 (Hexanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 4.2 Range of Values 8220 8220
. Missing 1423 9643

DR2TS080 - SFA 8:0 (Octanoic) (gm)

Variable Name:
DR2TS080
SAS Label:
SFA 8:0 (Octanoic) (gm)
English Text:
SFA 8:0 (Octanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 8.52 Range of Values 8220 8220
. Missing 1423 9643

DR2TS100 - SFA 10:0 (Decanoic) (gm)

Variable Name:
DR2TS100
SAS Label:
SFA 10:0 (Decanoic) (gm)
English Text:
SFA 10:0 (Decanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 6.306 Range of Values 8220 8220
. Missing 1423 9643

DR2TS120 - SFA 12:0 (Dodecanoic) (gm)

Variable Name:
DR2TS120
SAS Label:
SFA 12:0 (Dodecanoic) (gm)
English Text:
SFA 12:0 (Dodecanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 29.61 Range of Values 8220 8220
. Missing 1423 9643

DR2TS140 - SFA 14:0 (Tetradecanoic) (gm)

Variable Name:
DR2TS140
SAS Label:
SFA 14:0 (Tetradecanoic) (gm)
English Text:
SFA 14:0 (Tetradecanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 18.973 Range of Values 8220 8220
. Missing 1423 9643

DR2TS160 - SFA 16:0 (Hexadecanoic) (gm)

Variable Name:
DR2TS160
SAS Label:
SFA 16:0 (Hexadecanoic) (gm)
English Text:
SFA 16:0 (Hexadecanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 76.688 Range of Values 8220 8220
. Missing 1423 9643

DR2TS180 - SFA 18:0 (Octadecanoic) (gm)

Variable Name:
DR2TS180
SAS Label:
SFA 18:0 (Octadecanoic) (gm)
English Text:
SFA 18:0 (Octadecanoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 38.524 Range of Values 8220 8220
. Missing 1423 9643

DR2TM161 - MFA 16:1 (Hexadecenoic) (gm)

Variable Name:
DR2TM161
SAS Label:
MFA 16:1 (Hexadecenoic) (gm)
English Text:
MFA 16:1 (Hexadecenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 16.912 Range of Values 8220 8220
. Missing 1423 9643

DR2TM181 - MFA 18:1 (Octadecenoic) (gm)

Variable Name:
DR2TM181
SAS Label:
MFA 18:1 (Octadecenoic) (gm)
English Text:
MFA 18:1 (Octadecenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 144.083 Range of Values 8220 8220
. Missing 1423 9643

DR2TM201 - MFA 20:1 (Eicosenoic) (gm)

Variable Name:
DR2TM201
SAS Label:
MFA 20:1 (Eicosenoic) (gm)
English Text:
MFA 20:1 (Eicosenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 4.124 Range of Values 8220 8220
. Missing 1423 9643

DR2TM221 - MFA 22:1 (Docosenoic) (gm)

Variable Name:
DR2TM221
SAS Label:
MFA 22:1 (Docosenoic) (gm)
English Text:
MFA 22:1 (Docosenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 10.415 Range of Values 8220 8220
. Missing 1423 9643

DR2TP182 - PFA 18:2 (Octadecadienoic) (gm)

Variable Name:
DR2TP182
SAS Label:
PFA 18:2 (Octadecadienoic) (gm)
English Text:
PFA 18:2 (Octadecadienoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 97.246 Range of Values 8220 8220
. Missing 1423 9643

DR2TP183 - PFA 18:3 (Octadecatrienoic) (gm)

Variable Name:
DR2TP183
SAS Label:
PFA 18:3 (Octadecatrienoic) (gm)
English Text:
PFA 18:3 (Octadecatrienoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 12.085 Range of Values 8220 8220
. Missing 1423 9643

DR2TP184 - PFA 18:4 (Octadecatetraenoic) (gm)

Variable Name:
DR2TP184
SAS Label:
PFA 18:4 (Octadecatetraenoic) (gm)
English Text:
PFA 18:4 (Octadecatetraenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 0.803 Range of Values 8220 8220
. Missing 1423 9643

DR2TP204 - PFA 20:4 (Eicosatetraenoic) (gm)

Variable Name:
DR2TP204
SAS Label:
PFA 20:4 (Eicosatetraenoic) (gm)
English Text:
PFA 20:4 (Eicosatetraenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2.827 Range of Values 8220 8220
. Missing 1423 9643

DR2TP205 - PFA 20:5 (Eicosapentaenoic) (gm)

Variable Name:
DR2TP205
SAS Label:
PFA 20:5 (Eicosapentaenoic) (gm)
English Text:
PFA 20:5 (Eicosapentaenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2.555 Range of Values 8220 8220
. Missing 1423 9643

DR2TP225 - PFA 22:5 (Docosapentaenoic) (gm)

Variable Name:
DR2TP225
SAS Label:
PFA 22:5 (Docosapentaenoic) (gm)
English Text:
PFA 22:5 (Docosapentaenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2.324 Range of Values 8220 8220
. Missing 1423 9643

DR2TP226 - PFA 22:6 (Docosahexaenoic) (gm)

Variable Name:
DR2TP226
SAS Label:
PFA 22:6 (Docosahexaenoic) (gm)
English Text:
PFA 22:6 (Docosahexaenoic) (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 6.745 Range of Values 8220 8220
. Missing 1423 9643

DR2_300 - Compare food consumed yesterday to usual

Variable Name:
DR2_300
SAS Label:
Compare food consumed yesterday to usual
English Text:
Was the amount of food that {you/NAME} ate yesterday much more than usual, usual, or much less than usual?
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Much more than usual 665 665
2 Usual 6477 7142
3 Much less than usual 1240 8382
7 Refused 0 8382
9 Don't know 19 8401
. Missing 1242 9643

DR2_320 - Total plain water drank yesterday (gm)

Variable Name:
DR2_320
SAS Label:
Total plain water drank yesterday (gm)
English Text:
Total plain water drank yesterday - including plain tap water, water from a drinking fountain, water from a water cooler, bottled water, and spring water.
English Instructions:
Release data converted to grams.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 11366.4 Range of Values 8364 8364
. Missing 1279 9643

DR2_330 - Total tap water drank yesterday (gm)

Variable Name:
DR2_330
SAS Label:
Total tap water drank yesterday (gm)
English Text:
Total tap water drank yesterday - including filtered tap water and water from a drinking fountain.
English Instructions:
Release data converted to grams.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 11366.4 Range of Values 8374 8374
. Missing 1269 9643

DR2BWATR - Total bottled water drank yesterday (gm)

Variable Name:
DR2BWATR
SAS Label:
Total bottled water drank yesterday (gm)
English Text:
Total bottled water drank yesterday. (gm)
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 7577.6 Range of Values 8394 8394
. Missing 1249 9643

DR2CWATR - Plain carbonated water (gm)

Variable Name:
DR2CWATR
SAS Label:
Plain carbonated water (gm)
English Text:
Plain carbonated water drank yesterday - including unsweetened carbonated water, seltzer water, club soda, and carbonated bottled water such as Perrier.
English Instructions:
Release data converted to grams.
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 2841.6 Range of Values 8406 8406
. Missing 1237 9643

DR2TWS - Tap Water Source

Variable Name:
DR2TWS
SAS Label:
Tap Water Source
English Text:
Tap Water Source
Target:
Both males and females 0 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Community supply 4478 4478
2 Well or rain cistern 424 4902
3 Spring 52 4954
91 Other 30 4984
99 Don't know 131 5115
. Missing 4528 9643

Table 2. DR1TOT_C and DR2TOT_C Variables by Position

Day 1 Name Day 2 Name Variable Label
SEQN SEQN Respondent sequence number
WTDRD1 WTDRD1 Dietary day one sample weight
WTDR2D WTDR2D Dietary two-day sample weight
DR1DRSTZ DR2DRSTZ Dietary recall status
DR1EXMER DR2EXMER Interviewer ID code
DRABF DRABF Breast-fed infant (either day)
DRDINT DRDINT Number of days of intake
DR1DAY DR2DAY Intake day of the week
DR1LANG DR2LANG Language SP/proxy used mostly
DR1MNRSP DR2MNRSP Main respondent for this interview
DR1HELPD DR2HELPD Helped in responding for this interview
DBQ095Z N/A Type of salt you use
DBD100 N/A How often add salt to food at table
DRQSPREP N/A Salt used in preparation?
DRQSDIET N/A On special diet?
DRQSDT1 N/A Weight loss/ low cal/ low carb/ hi pro diet
DRQSDT2 N/A Low fat/ low cholesterol diet
DRQSDT3 N/A Low salt/ low sodium diet
DRQSDT4 N/A Sugar free/ low sugar diet
DRQSDT5 N/A Low fiber diet
DRQSDT6 N/A High fiber diet
DRQSDT7 N/A Diabetic diet
DRQSDT8 N/A Weight gain/ muscle building diet
DRQSDT91 N/A Other special diet
DR1TNUMF DR2TNUMF Number of foods
DR1TKCAL DR2TKCAL Energy (kcal)
DR1TPROT DR2TPROT Protein (gm)
DR1TCARB DR2TCARB Carbohydrate (gm)
DR1TSUGR DR2TSUGR Total sugars (gm)
DR1TFIBE DR2TFIBE Dietary fiber (gm)
DR1TTFAT DR2TTFAT Total fat (gm)
DR1TSFAT DR2TSFAT Total saturated fatty acids (gm)
DR1TMFAT DR2TMFAT Total monounsaturated fatty acids (gm)
DR1TPFAT DR2TPFAT Total polyunsaturated fatty acids (gm)
DR1TCHOL DR2TCHOL Cholesterol (mg)
DR1TATOC DR2TATOC Vitamin E as alpha-tocopherol (mg)
DR1TATOA DR2TATOA Added alpha-tocopherol (Vitamin E) (mg)
DR1TRET DR2TRET Retinol (mcg)
DR1TVARA DR2TVARA Vitamin A, RAE (mcg)
DR1TACAR DR2TACAR Alpha-carotene (mcg)
DR1TBCAR DR2TBCAR Beta-carotene (mcg)
DR1TCRYP DR2TCRYP Beta-cryptoxanthin (mcg)
DR1TLYCO DR2TLYCO Lycopene (mcg)
DR1TLZ DR2TLZ Lutein + zeaxanthin (mcg)
DR1TVB1 DR2TVB1 Thiamin (vitamin B1) (mg)
DR1TVB2 DR2TVB2 Riboflavin (vitamin B2) (mg)
DR1TNIAC DR2TNIAC Niacin (mg)
DR1TVB6 DR2TVB6 Vitamin B6 (mg)
DR1TFOLA DR2TFOLA Total folate (mcg)
DR1TFA DR2TFA Folic acid (mcg)
DR1TFF DR2TFF Food folate (mcg)
DR1TFDFE DR2TFDFE Folate, DFE (mcg)
DR1TVB12 DR2TVB12 Vitamin B12 (mcg)
DR1TB12A DR2TB12A Added vitamin B12 (mcg)
DR1TVC DR2TVC Vitamin C (mg)
DR1TVK DR2TVK Vitamin K (mcg)
DR1TCALC DR2TCALC Calcium (mg)
DR1TPHOS DR2TPHOS Phosphorus (mg)
DR1TMAGN DR2TMAGN Magnesium (mg)
DR1TIRON DR2TIRON Iron (mg)
DR1TZINC DR2TZINC Zinc (mg)
DR1TCOPP DR2TCOPP Copper (mg)
DR1TSODI DR2TSODI Sodium (mg)
DR1TPOTA DR2TPOTA Potassium (mg)
DR1TSELE DR2TSELE Selenium (mcg)
DR1TCAFF DR2TCAFF Caffeine (mg)
DR1TTHEO DR2TTHEO Theobromine (mg)
DR1TALCO DR2TALCO Alcohol (gm)
DR1TMOIS DR2TMOIS Moisture (gm)
DR1TS040 DR2TS040 SFA 4:0 (Butanoic) (gm)
DR1TS060 DR2TS060 SFA 6:0 (Hexanoic) (gm)
DR1TS080 DR2TS080 SFA 8:0 (Octanoic) (gm)
DR1TS100 DR2TS100 SFA 10:0 (Decanoic) (gm)
DR1TS120 DR2TS120 SFA 12:0 (Dodecanoic) (gm)
DR1TS140 DR2TS140 SFA 14:0 (Tetradecanoic) (gm)
DR1TS160 DR2TS160 SFA 16:0 (Hexadecanoic) (gm)
DR1TS180 DR2TS180 SFA 18:0 (Octadecanoic) (gm)
DR1TM161 DR2TM161 MFA 16:1 (Hexadecenoic) (gm)
DR1TM181 DR2TM181 MFA 18:1 (Octadecenoic) (gm)
DR1TM201 DR2TM201 MFA 20:1 (Eicosenoic) (gm)
DR1TM221 DR2TM221 MFA 22:1 (Docosenoic) (gm)
DR1TP182 DR2TP182 PFA 18:2 (Octadecadienoic) (gm)
DR1TP183 DR2TP183 PFA 18:3 (Octadecatrienoic) (gm)
DR1TP184 DR2TP184 PFA 18:4 (Octadecatetraenoic) (gm)
DR1TP204 DR2TP204 PFA 20:4 (Eicosatetraenoic) (gm)
DR1TP205 DR2TP205 PFA 20:5 (Eicosapentaenoic) (gm)
DR1TP225 DR2TP225 PFA 22:5 (Docosapentaenoic) (gm)
DR1TP226 DR2TP226 PFA 22:6 (Docosahexaenoic) (gm)
DR1_300 DR2_300 Compare food consumed yesterday to usual
DR1_320 DR2_320 Total plain water drank yesterday (gm)
DR1_330 DR2_330 Total tap water drank yesterday (gm)
DR1BWATR DR2BWATR Total bottled water drank yesterday (gm)
DR1CWATR DR2CWATR Plain carbonated water (gm)
DR1TWS DR2TWS Tap water source
DRD340 N/A Shellfish eaten during past 30 days
DRD350A N/A Clams eaten during past 30 days
DRD350AQ N/A # of times clams eaten in past 30 days
DRD350B N/A Crabs eaten during past 30 days
DRD350BQ N/A # of times crabs eaten in past 30 days
DRD350C N/A Crayfish eaten during past 30 days
DRD350CQ N/A # of times crayfish eaten past 30 days
DRD350D N/A Lobsters eaten during past 30 days
DRD350DQ N/A # of times lobsters eaten past 30 days
DRD350E N/A Mussels eaten during past 30 days
DRD350EQ N/A # of times mussels eaten in past 30 days
DRD350F N/A Oysters eaten during past 30 days
DRD350FQ N/A # of times oysters eaten in past 30 days
DRD350G N/A Scallops eaten during past 30 days
DRD350GQ N/A # of times scallops eaten past 30 days
DRD350H N/A Shrimp eaten during past 30 days
DRD350HQ N/A # of times shrimp eaten in past 30 days
DRD350I N/A Other shellfish eaten past 30 days
DRD350IQ N/A # of times other shellfish eaten
DRD350J N/A Other unknown shellfish eaten past 30 d
DRD350JQ N/A # of times other unknown shellfish eaten
DRD350K N/A Refused on shellfish eaten past 30 days
DRD360 N/A Fish eaten during past 30 days
DRD370A N/A Breaded fish products eaten past 30 days
DRD370AQ N/A # of times breaded fish products eaten
DRD370B N/A Tuna eaten during past 30 days
DRD370BQ N/A # of times tuna eaten in past 30 days
DRD370C N/A Bass eaten during past 30 days
DRD370CQ N/A # of times bass eaten in past 30 days
DRD370D N/A Catfish eaten during past 30 days
DRD370DQ N/A # of times catfish eaten in past 30 days
DRD370E N/A Cod eaten during past 30 days
DRD370EQ N/A # of times cod eaten in past 30 days
DRD370F N/A Flatfish eaten during past 30 days
DRD370FQ N/A # of times flatfish eaten past 30 days
DRD370G N/A Haddock eaten during past 30 days
DRD370GQ N/A # of times haddock eaten in past 30 days
DRD370H N/A Mackerel eaten during past 30 days
DRD370HQ N/A # of times mackerel eaten past 30 days
DRD370I N/A Perch eaten during past 30 days
DRD370IQ N/A # of times perch eaten in past 30 days
DRD370J N/A Pike eaten during past 30 days
DRD370JQ N/A # of times pike eaten in past 30 days
DRD370K N/A Pollock eaten during past 30 days
DRD370KQ N/A # of times pollock eaten in past 30 days
DRD370L N/A Porgy eaten during past 30 days
DRD370LQ N/A # of times porgy eaten in past 30 days
DRD370M N/A Salmon eaten during past 30 days
DRD370MQ N/A # of times salmon eaten in past 30 days
DRD370N N/A Sardines eaten during past 30 days
DRD370NQ N/A # of times sardines eaten past 30 days
DRD370O N/A Sea bass eaten during past 30 days
DRD370OQ N/A # of times sea bass eaten past 30 days
DRD370P N/A Shark eaten during past 30 days
DRD370PQ N/A # of times shark eaten in past 30 days
DRD370Q N/A Swordfish eaten during past 30 days
DRD370QQ N/A # of times swordfish eaten past 30 days
DRD370R N/A Trout eaten during past 30 days
DRD370RQ N/A # of times trout eaten in past 30 days
DRD370S N/A Walleye eaten during past 30 days
DRD370SQ N/A # of times walleye eaten in past 30 days
DRD370T N/A Other fish eaten during past 30 days
DRD370TQ N/A # of times other fish eaten past 30 days
DRD370U N/A Other unknown fish eaten in past 30 days
DRD370UQ N/A # of times other unknown fish eaten
DRD370V N/A Refused on fish eaten past 30 days

Table 3. List of Nutrients/Food Components (Unit)

Food energy (kcal)
Protein (g)
Carbohydrate (g)
Fat, total (g)
Alcohol (g)
Sugars, total (g)
Dietary fiber, total (g)
Water (g)
Saturated fatty acids, total (g)
Monounsaturated fatty acids, total (g)
Polyunsaturated fatty acids, total (g)
Cholesterol (mg)
Individual fatty acids:
  4:0 (g)
  6:0 (g)
  8:0 (g)
  10:0 (g)
  12:0 (g)
  14:0 (g)
  16:0 (g)
  18:0 (g)
  16:1 (g)
  18:1 (g)
  20:1 (g)
  22:1 (g)
  18:2 (g)
  18:3 (g)
  18:4 (g)
  20:4 (g)
  20:5 n-3 (g)
  22:5 n-3 (g)
  22:6 n-3 (g)
Vitamin A as retinol activity equivalents (μg)
Retinol (μg)
Carotenoids:
  Carotene, alpha (μg)
  Carotene, beta (μg)
  Cryptoxanthin, beta (μg)
  Lycopene (μg)
  Lutein + zeaxanthin (μg)
Vitamin E as alpha-tocopherol (mg)
  Added vitamin E as alpha-tocopherol (mg)
Vitamin K as phylloquinone (μg)
Vitamin C (mg)
Thiamin (mg)
Riboflavin (mg)
Niacin (mg)
Vitamin B-6 (mg)
Folate, total (μg)
  Folate as dietary folate equivalents (μg)
  Folic acid (μg)
  Food folate (μg)
Vitamin B-12 (μg)
  Added vitamin B-12 (μg)
Calcium (mg)
Iron (mg)
Magnesium (mg)
Phosphorus (mg)
Potassium (mg)
Sodium (mg)
Zinc (mg)
Copper (mg)
Selenium (μg)
Caffeine (mg)
Theobromine (mg)