Respondents who have had sexual intercourse (V525 <> 0).
Within last 4 weeks
Before last birth
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.
Computed time since last sexual intercourse. This is computed from the responses for V527, with durations exceeding the interval since the last birth (V530 = 9) recoded as "Before last birth" and inconsistent responses flagged on variable V530 (codes 1-8) recoded to 97.