Demographic Variables and Sample Weights
Respondent sequence number
Data release cycle
Interview/Examination status
Gender
Age in years at screening
Age in months at screening - 0 to 24 mos
Race/Hispanic origin
Race/Hispanic origin w/ NH Asian
Six-month time period
Age in months at exam - 0 to 19 years
Served active duty in US Armed Forces
Country of birth
Length of time in US
Education level - Adults 20+
Marital status
Pregnancy status at exam
Total number of people in the Household
Full sample 2-year interview weight
Full sample 2-year MEC exam weight
Masked variance pseudo-stratum
Masked variance pseudo-PSU
Ratio of family income to poverty