National Longitudinal Study of Adolescent to Adult Health, Public Use Glucose Homeostasis Data, Wave IV

Data Archive > U.S. Surveys > General Population > National > Add Health Surveys > Codebook


All frequencies are raw numbers (no weights used).
1) [Wave IV Measures of Glucose Homeostasis] Respondent Identifier (AID)
NMeanStd.Deviation
TOTAL511494263061.6516312489
2) GLUCOSE (MG/DL) (GLUCOSE)
NMeanStd.Deviation
TOTAL4723142.61176
3) HEMOGLOBIN A1c (%) (HBA1C)
NMeanStd.Deviation
TOTAL47036.1817
4) HbA1c INTER-CONVERSION FLAG (CONVERT)
TOTAL%
0) No conversion463398.5
1) Converted FlexSite two to FlexSite one330.7
2) Converted BIOSAFE to FlexSite two to FlexSite one80.2
9) No result for HbA1c290.6
Missing411 
TOTAL4703100.0
5) Hours since last ate (FASTTIME)
NMeanStd.Deviation
TOTAL50674.8195
6) CLASSIFICATION OF FASTING GLUCOSE (C_FGLU)
TOTAL%
1) Glucose less than or equal to 99 mg/dl3347.1
2) Glucose 100-125 mg/dl -- Impaired Fasting Glucose (IFG)/pre-diabetes3537.5
3) Glucose greater than or equal to 126 mg/dl -- diabetes671.4
4) Non-fasting374079.2
5) Fasting status unknown420.9
9) No result for glucose1874.0
Missing391 
TOTAL4723100.0
7) CLASSIFICATION OF NON-FASTING GLUCOSE (C_NFGLU)
TOTAL%
1) Glucose less than or equal to 199 mg/dl370178.4
2) Glucose greater than or equal to 200 mg/dl -- diabetes390.8
3) Fasting75416.0
4) Fasting status unknown420.9
9) No result for glucose1874.0
Missing391 
TOTAL4723100.0
8) CLASSIFICATION OF HbA1c (C_HBA1C)
TOTAL%
1) HbA1c(%) less than or equal to 5.6313466.6
2) HbA1c(%) 5.7-6.4 -- pre-diabetes133928.5
3) HbA1c(%) greater than or equal to 6.5 -- diabetes2014.3
9) No result for HbA1c290.6
Missing411 
TOTAL4703100.0
9) ANTI-DIABETIC MEDICATION USE (C_MED)
TOTAL%
0) Did not report taking anti-diabetic medication503598.5
1) Reported taking anti-diabetic medication791.5
TOTAL5114100.0
10) JOINT CLASSIFICATION OF GLUCOSE, HbA1c, SELF-REPORTED HISTORY OF DIABETES, AND ANTI-DIABETIC MEDICATION USE (C_JOINT)
TOTAL%
0) No diabetes475392.9
1) Has diabetes3617.1
TOTAL5114100.0