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.
MARTO1STBORNMO (V221) reports the number of months between the woman's first marriage (i.e., formal marriage or first episode of living with a man) and her first birth. For women whose first birth occurred before their first marriage, this variable is coded as '998.'
Marriage and cohabitation Variables -- TOPICS