Table 3. HIV risk at follow-up in clinical and community control samples.
| Item | Clinical N = 195 % (n) or mean (SD) |
Comparison Sample N = 137 % (n) or Mean (SD) |
Statistic | p value |
|---|---|---|---|---|
| Lifetime history of IDU | 17.4 (34) | 0 (0) | χ12=26.61 | 0.0005 |
| Amount of friends having sex† (all and most) | 94.6 (139) (n=147) |
82.7 (86) (n=104) |
χ12=9.24 | 0.002 |
| People my age are just too young to have sex† (strongly disagree and disagree) | 91.8 (135) (n=147) |
88.5 (92) (n=104) |
χ12=0.80 | 0.370 |
| It's better not to have sex rather than to risk getting pregnant or a disease† (strongly disagree and disagree) | 48.3 (71) (n=147) |
41.7 (43) (n=103) |
χ12=1.05 | 0.306 |
| When people your age have sex, do they usually use some kind of protection† (almost none and some) | 46.9 (69) (n=147) |
19.2 (20) (n=104) |
χ12=20.43 | 0.0005 |
| How much peer pressure is there on people your age to have sex† (a lot and a fair amount) | 40.1 (59) (n=147) |
55.8 (58) (n=104) |
χ12=5.98 | 0.014 |
| Unprotected sex (any response other than almost always uses protection or no sex) | 73.7 (140) (n=190) |
41.5 (51) (n=123) |
χ12=32.59 | 0.0005 |
| Number of lifetime sex partners | 16.3 (13.7) (n=186) |
7.4 (10.9) (n=120) |
U=4910.00 | 0.0005 |
Notes: sample sizes vary because some participants failed to answer all questions and n = the number of participants who responded to the question;
†
These items were only completed by participants who were not currently married or living with a partner at follow-up.