Table 1.
Descriptive statistics.
| Variable | Categories | Wave 1 N (%) | Wave 2 N (%) | Wave 3 N (%) | Wave 4 N (%) | Wave 5 N (%) |
|---|---|---|---|---|---|---|
| Sample size | Number of participants | 526 | 499 | 483 | 482 | 487 |
| Age | Mean (SD) | 20.1 (1.6) | 20.7 (1.7) | 21.2 (1.6) | 21.7 (1.7) | 22.2 (1.6) |
| Ethnicity | African American | 126 (24) | 115 (23) | 115 (24) | 115 (24) | 115 (24) |
| Latino of Mexican descent | 205 (39) | 196 (39) | 192 (40) | 191 (40) | 195 (40) | |
| Caucasian | 195 (37) | 188 (38) | 176 (36) | 176 (37) | 177 (36) | |
| HIV testing group (among sexually active respondents only) | Tested within past 6 months | 168 (32) | 188 (36) | 215 (41) | 220 (42) | 223 (47) |
| Tested 6 months to 1 year ago | 97 (18) | 109 (21) | 88 (17) | 123 (23) | 151 (32) | |
| Tested more than 1 year ago | 100 (19) | 92 (17) | 105 (20) | 77 (15) | 70 (15) | |
| Never been tested | 127 (24) | 83 (16) | 55 (10) | 39 (7) | 30 (6) | |
| HIV status | Positive | 15 (3) | 17 (3) | 18 (4) | 18 (4) | 17 (3) |
| Negative | 420 (80) | 412 (83) | 395 (82) | 411 (85) | 417 (86) | |
| Don't know | 90 (17) | 69 (14) | 69 (14) | 49 (10) | 49 (10) | |
| Refused to answer | 1 (0) | 1 (0) | 1 (0) | 4 (1) | 4 (1) | |
| High sex risk | Single UAI serodiscordant / multiple partners | 125 (24) | 140 (27) | 139 (26) | 115 (22) | 121 (23) |
| Illicit drug use | Past 3 months | 148 (28) | 148 (30) | 152 (31) | 132 (27) | 136 (28) |
| Club drug use | Past 3 months | 117 (22) | 117 (23) | 120 (25) | 108 (22) | 110 (23) |