Table of Contents

Locator Record

Title: Early Childhood (ECQ_F )
Contact Number: 1-866-441-NCHS
Years of Content: 2009 - 2010
First Published: January, 2012
Revised: NA
Access Constraints: None
Use Constraints: None
Geographic Coverage: National
Subject:Personal interview data for children, including birth weight, age of mother at birth, mother smoking during pregnancy, and proxy's assessment of the participant's weight.
Record Source: NHANES 2009 - 2010
Survey Methodology: NHANES 2009 - 2010 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 Early Childhood section of the Sample Person Questionnaire (variable name prefix ECQ) provides personal interview data for children, including the age of the biological mother when the child survey participant was born, smoking habits of the mother while she was pregnant with the participant, birth weight and the proxy’s assessment of the participant’s weight. Many of the questions were included in NHANES III.

Eligible Sample

The target sample for the questions in this section is persons from birth to 15 years of age. However, target samples for some questions in this section vary. Please review the codebook carefully. Frequency counts were verified during the preparation of the file.

Interview Setting and Mode of Administration

These questions were asked, in the home, by trained interviewers using the Computer-Assisted Personal Interviewing (CAPI) system.

For details on the administration of the Early Childhood (ECQ_F) section, please refer to the NHANES 2009-10 Interviewer Procedure Manuals and the Early Childhood Sample Person Questionnaire on the NHANES website.

Quality Assurance & Quality Control

The CAPI system is programmed with built-in consistency checks to reduce data entry errors. CAPI also uses online help screens to assist interviewers in defining key terms used in the questionnaire.

For details on the quality control/quality assurance process for this component, please refer to the NHANES 2009-10 Interviewer Procedure Manuals on the NHANES website.

Data Processing and Editing

For ECD070A (weight at birth, pounds) and ECD070B (weight at birth, ounces), all responses of 13 pounds or over were collapsed into a single category, with ECD070A coded as '13' and ECD070B coded as '0'. This was done to protect the confidentiality of survey participants.

For ECD010 (age of biological mother when the survey participant was born), any reported values under 14 years were coded as 14 years and younger and any reported values over 45 years were coded as 45 years and older. This was done to protect the confidentiality of participants.

Frequency counts were verified during the preparation of the file.

Analytic Notes

Although data in this file were collected as part of the household questionnaire, if they are merged with the MEC exam data, exam sample weights should be used for the analyses.

Changes since 2007-2008:

Discontinued Questions:
  ECQ030
  ECQ040
  ECQ060
  FSQ121

New Questions:
  None

Please refer to the NHANES Analytic Guidelines and the on-line NHANES Tutorial for further details on the use of sample weights and other analytic issues.

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 - 15 YEARS

ECD010 - Mother's age when born

Variable Name:
ECD010
SAS Label:
Mother's age when born
English Text:
First I have some questions about {SP NAME's} birth. How old was {SP NAME's} biological mother when {s/he} was born?
English Instructions:
ENTER AGE IN YEARS
Target:
Both males and females 0 YEARS - 15 YEARS
Hard Edits:
0 to 59
Code or Value Value Description Count Cumulative Skip to Item
15 to 44 Range of Values 3589 3589
14 14 years or younger 12 3601
45 45 years or older 10 3611
7777 Refused 0 3611
9999 Don't know 37 3648
. Missing 0 3648

ECQ020 - Mother smoked when pregnant

Variable Name:
ECQ020
SAS Label:
Mother smoked when pregnant
English Text:
Did {SP NAME's} biological mother smoke at any time while she was pregnant with {him/her}?
Target:
Both males and females 0 YEARS - 15 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 467 467
2 No 3143 3610
7 Refused 1 3611
9 Don't know 37 3648
. Missing 0 3648

ECD070A - Weight at birth, pounds

Variable Name:
ECD070A
SAS Label:
Weight at birth, pounds
English Text:
How much did {SP NAME} weigh at birth?
English Instructions:
IF ANSWER GIVEN IN POUNDS ONLY, PROBE FOR OUNCES. IF ANSWER GIVEN IN EXACT POUNDS, ENTER NUMBER OF POUNDS AND 0 OUNCES. ENTER NUMBER OF POUNDS.
Target:
Both males and females 0 YEARS - 15 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 to 12 Range of Values 3578 3578
13 13 pounds or more 8 3586
7777 Refused 0 3586
9999 Don't know 62 3648
. Missing 0 3648

ECD070B - Weight at birth, ounces

Variable Name:
ECD070B
SAS Label:
Weight at birth, ounces
English Text:
How much did {SP NAME} weigh at birth?
English Instructions:
ENTER NUMBER OF OUNCES
Target:
Both males and females 0 YEARS - 15 YEARS
Hard Edits:
0 to 15
Code or Value Value Description Count Cumulative Skip to Item
0 to 15 Range of Values 3586 3586
7777 Refused 0 3586
9999 Don't know 0 3586
. Missing 62 3648

ECQ075 - CHECK ITEM

Variable Name:
ECQ075
English Instructions:
BOX 1. CHECK ITEM: IF REFUSED (CODE 7777) OR DON'T KNOW (CODE 9999) TO ECD070A, CONTINUE; OTHERWISE, GO TO ECQ095 (BOX 2).
Target:
Both males and females 0 YEARS - 15 YEARS

ECQ080 - Weight more/less than 5.5 lbs

Variable Name:
ECQ080
SAS Label:
Weight more/less than 5.5 lbs
English Text:
Did {SP NAME} weigh . . .
Target:
Both males and females 0 YEARS - 15 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 More than 5-1/2 lbs. (2500 g), or 42 42
2 Less than 5-1/2 lbs. (2500 g)? 7 49 ECQ095
7 Refused 0 49 ECQ095
9 Don't know 13 62 ECQ095
. Missing 3586 3648

ECQ090 - Weight more/less than 9.0 lbs

Variable Name:
ECQ090
SAS Label:
Weight more/less than 9.0 lbs
English Text:
Did {SP NAME} weigh . . .
Target:
Both males and females 0 YEARS - 15 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 More than 9 lbs. (4100 g), or 0 0
2 Less than 9 lbs. (4100 g)? 41 41
7 Refused 0 41
9 Don't know 1 42
. Missing 3606 3648

ECQ095 - CHECK ITEM

Variable Name:
ECQ095
English Instructions:
BOX 2. CHECK ITEM ECQ095: IF SP AGE = 2-15 YEARS CONTINUE; OTHERWISE, GO TO END OF SECTION.
Target:
Both males and females 0 YEARS - 15 YEARS

WHQ030E - How do you consider {SP} weight

Variable Name:
WHQ030E
SAS Label:
How do you consider {SP} weight
English Text:
How do you consider your child's weight?
Target:
Both males and females 2 YEARS - 15 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Overweight 413 413
2 Underweight 219 632
3 About the right weight 2262 2894
7 Refused 1 2895
9 Don't know 2 2897
. Missing 751 3648

MCQ080E - Doctor told you that {SP} was overweight

Variable Name:
MCQ080E
SAS Label:
Doctor told you that {SP} was overweight
English Text:
Has a doctor or health professional ever told you that {SP} was overweight?
Target:
Both males and females 2 YEARS - 15 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 319 319
2 No 2574 2893 End of Section
7 Refused 1 2894 End of Section
9 Don't know 3 2897 End of Section
. Missing 751 3648

ECQ150 - Doing anything to help control weight?

Variable Name:
ECQ150
SAS Label:
Doing anything to help control weight?
English Text:
Are you now doing anything to help {SP} control {his/her} weight?
Target:
Both males and females 2 YEARS - 15 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 253 253
2 No 66 319
7 Refused 0 319
9 Don't know 0 319
. Missing 3329 3648