Time since the respondent=s last sexual intercourse with his partner. The first digit gives the units in which the respondent gave his answer: 1 - Days ago, 2 - Weeks ago, 3 - Months ago, 4 - Years ago,, with 9 meaning a special answer was given. The last two digits give the time in the units given. Any value for time greater than 90 is a special answer.
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