Self-report of sexual intercourse in the past 3 months. This graph does not represent results of generalized estimation equation analyses. The percentage (SE) was calculated for the outcome variable; unadjusted scores are presented for each time period. Values for the human immunodeficiency virus (HIV) risk-reduction group are as follows: pretest, 25.9% (0.44%); 3 mo, 26.0% (0.44%); 6 mo, 28.4% (0.45%); and 12 mo, 35.7% (0.48%). Values for the health-promotion group are as follows: pretest, 28.4% (0.45%); 3 mo, 31.0% (0.46%); 6 mo, 33.3% (0.47%); and 12 mo, 40.7% (0.49%).