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.
AGE1STSEXIMP (V531) reports the respondent's age at first sexual intercourse.
This variable is the same as AGE1STSEX (V525), except for women who reported their first sexual intercourse was at the time of their union. For these women, the age at first sex is taken from the age at first union. In cases where the age at first sex was inconsistent with the age at conception of the first child, but only by one year, the age at first sex was reduced by one year.
First or ever sexual experience Variables -- PERSON