Continuous NHANES Web Tutorial Variable List

Examination Variables

Variable Name Variable Label
BPXSY1 Systolic: Blood pressure (first reading) mm Hg
BPXSY2 Systolic: Blood pressure (second reading) mm Hg
BPXSY3 Systolic: Blood pressure (third reading) mm Hg
BPXSY4 Systolic: Blood pressure (fourth reading if necessary) mm Hg
BPXDI1 Diastolic: Blood pressure (first reading) mm Hg
BPXDI2 Diastolic: Blood pressure (second reading) mm Hg
BPXDI3 Diastolic: Blood pressure (third reading) mm Hg
BPXDI4 Diastolic: Blood pressure (fourth reading if necessary) mm Hg
BMXBMI Body Mass Index (Body Mass Index (kg/m**2) )
SEQN Sequence Number (Unique observation number)


 

Questionnaire Variables

Variable Name Variable Label
BPQ010 About how long has it been since {you/SP} last had {your/his/her} blood pressure taken by a doctor or other health professional?
BPQ020 {Have you/Has SP} ever been told by a doctor or other health professional that {you/s/ he} had hypertension, also called high blood pressure?
BPQ030 {Were you/Was SP} told on 2 or more different visits that {you/s/he} had hypertension, also called high blood pressure?
BPQ050A HELP AVAILABLE (Are you/Is SP) now taking prescribed medicine?
BPQ070 About how long has it been since {you/SP} last had {your/his/her} blood cholesterol checked?
BPQ080 {Have you/Has SP} ever been told by a doctor or other health professional that {your/ his/her} blood cholesterol level was high?
BPQ100d (Are you/Is SP) now following this advice to take prescribed medicine?
MCQ160B Has a doctor or other health professional ever told {you/SP} that {you/s/he} . . .had congestive heart failure?
MCQ160C Has a doctor or other health professional ever told {you/SP} that {you/s/he} . . .had coronary heart disease?
MCQ160D Has a doctor or other health professional ever told {you/SP} that {you/s/he} . . .had angina, also called angina pectoris?
MCQ160E Has a doctor or other health professional ever told {you/SP} that {you/s/he} . . .had a heart attack (also called myocardial infarction)?
MCQ160F Has a doctor or other health professional ever told {you/SP} that {you/s/he} . . .had a stroke?
SEQN Sequence Number (Unique observation number)


 

Laboratory Variables

Variable Name Variable Label
LBXTC Total cholesterol (mg/dL)
LBXTR Triglyceride (mg/dL)
SEQN Sequence Number (Unique observation number)

 

Demographic Variables

Variable Name Variable Label
RIDAGEYR Age at Screening Adjudicated - Recode
RIAGENDR Gender - Adjudicated
RIDPREG Pregnancy Status - Recode
RIDRETH1 Race/Ethnicity - Recode
RIDSTATR Interview/Examination Status
SDDSRVYR Data Release Number
SEQN Sequence Number (Unique observation number)


 

Weights

Variable Name Variable Label
SDMVPSU Masked Variance Unit Pseudo-PSU variable for variance estimation
SDMVSTRA Masked Variance Unit Pseudo-Stratum variable for variance estimation
WTMEC4YR Both Interviewed and MEC Examined Sample Persons. Used for 1999-2002 data collection years only.



 

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