Interviewer instructions
Again, we are looking for the age of the person he had sexual intercourse with at the time of the sexual encounter.
Record the age in the space provided. If he does not know, ask him to estimate the age of this person. If the respondent is unable to estimate the sexual partner's age, probe by asking "About how old is this person?". If he still says he does not know, circle '98' and continue to the next question.