Table II.
Baseline Characteristics and Risk Factors of Online and Clinic Samples
| Online Sample N=991 | Clinic Sample N=574 | |||
|---|---|---|---|---|
| Intervention (N=514) | Control (N=477) | Intervention (N=285) | Control (N=289) | |
| Males | 284 (55.3%) | 243 (50.9%) | 67 (23.5%) | 62 (21.5%) |
| Age: mean(std) | 21.7 (1.8) | 21.8 (1.8) | 21.4 (1.9) | 21.3 (1.9) |
| Race: White | 335 (65.2%) | 316 (66.3%) | 202 (70.9%) | 202 (69.9%) |
| Asian | 103 (20.0%) | 86 (18.0%) | 4 (1.4%) | 6 (2.1%) |
| Black | 11 (2.1%) | 11 (2.2%) | 12 (4.2%) | 13 (4.5%) |
| Hispanic | 15 (2.9%) | 7 (1.5%) | 31 (10.9%) | 30 (10.4%) |
| Multi-race | 31 (6.0%) | 31 (6.5%) | 25 (8.7%) | 32 (11.0%) |
| Other | 19 (3.7%) | 26 (5.5%) | 11 (3.9%) | 6 (2.1%) |
| Currently Working | 376 (73.2%) | 339 (71.1%) | 234 (82.1%) | 254 (87.9%)*a |
| Currently in School | 274 (53.3%) | 250 (52.4%) | 152 (53.3%) | 142 (49.1%) |
| Disposable monthly income: $0–$100 | 86 (16.7 %) | 93 (19.5%) | 39 (13.6%) | 29 (10.0%) |
| $101–$300 | 53 (10.3%) | 43 (9.0%) | 28 (9.8%) | 24 (8.3%) |
| $301–$600 | 83 (16.2%) | 70 (14.7%) | 58 (20.4%) | 51 (17.6%) |
| $601–$800 | 77 (15.0%) | 72 (15.1%) | 35 (12.3%) | 60 (20.8%) |
| >$801 | 215 (41.8%) | 199 (41.7%) | 125 (43.9%) | 125 (43.3%) |
| Baseline HIV Risk Factors | ||||
| Had >1 partner in 12 mos. | 73 (14.2%) | 76 (16.0%) | 98 (34.4%) | 75 (26%)*b |
| Proportion of protected acts in 60 days1 | 0.71 (0, 1.0) | 0.83 (0, 1.0) | 0.20 (0, 1.0) | 0.33 (0, 1.0) |
| History of STD | 20 (3.9%) | 23 (4.8%) | 37 (13%) | 37 (12.8%) |
1
Median proportion of protected sex acts in past 90 days (5th, 95th percentiles); only among those who reported having had sex in the past 90 days. Sex was defined as vaginal, anal or oral sex; participants were explicitly instructed not to consider masturbation in this assessment.
*a
chi square = 3.77 (p=0.0522)
*b
chi square = 4.85 (p=0.0277)