DON'T KNOW MONTH 98
DON'T KNOW YEAR 9998
NIU (not in universe)
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
HWFBIRTHCMC (HA32) reports the century month code for the date of birth of female household members (of childbearing age) who were potential subjects for height and weight measurement.
Female biometrics, general Variables -- TOPICS