TABLE 2.
C-SAFE Findings: Outcome and Mediating Variables
| Variable | Unadjusted M (SD)/% |
Adjusted Means [95% CI]a (Negative Binomial Regressions) |
Adjusteda Mean Difference (Linear Regressions) |
Percent Relative Change [95% CI]b (Linear Regressions) |
Odds/Likelihood Ratio [95% CI]c(Logistic and Negative Binomial Regressions) |
Test Statistic d |
p | ||
|---|---|---|---|---|---|---|---|---|---|
| C-SAFE (I) | Control (C) | C-SAFE | Control | ||||||
| Sexual behaviors | |||||||||
| No. of sex partners in past 30 days | 0.94 (0.89) | 0.93 (1.30) | 0.99 [0.67, 1.47] | 1.08 [0.70, 1.67] | NA | NA | 0.92 [0.62, 1.37] | 0.92 | .680 |
| No. of sex partners in past 6 months | 1.59 (3.30) | 1.34 (3.04) | 1.69 [1.17, 2.44] | 1.89 [1.26, 2.84] | NA | NA | 0.89 [0.61, 1.30] | 0.89 | .553 |
| Condom use at last sexual encounter | 42.6% | 48.8% | NA | NA | NA | NA | 0.778 [0.34, 1.76] | 0.778 | .546 |
| Never used condoms, vaginal sex | 32.5% | 33.8% | NA | NA | NA | NA | 0.985 [0.57, 1.69] | 0.985 | .957 |
| Never used condoms, anal sex | 41.7% | 40.8% | NA | NA | NA | NA | 0.885 [0.51, 1.53] | 0.885 | .661 |
| Never used condoms, all sex | 38.0% | 38.9% | NA | NA | NA | NA | 0.983 [0.57, 1.70] | 0.983 | .952 |
| Condom Self-Efficacy Scale | 103.30 (20.63) | 107.61 (23.52) | NA | NA | −3.30 [−9.43, 2.82] | −3.00 [−18.03, 5.39] | NA | 1.134 | .288 |
| Currently have an STI | 6.71% | 2.55% | 6.235 [0.39, 39.64] | 6.235 | .052 | ||||
| Monogamy | |||||||||
| Only have sex with this partner | 88.18% | 92.55% | NA | NA | NA | NA | 0.319 [0.04, 2.41] | 0.319 | .268 |
| Thinks or not sure if partner has sex with other women | 29.10% | 38.76% | NA | NA | NA | NA | 0.661 [0.36, 1.22] | 0.661 | .185 |
| STI attitudes | |||||||||
| Catching STI makes me feel angry at partner | 49.02% | 69.34% | NA | NA | NA | NA | 0.165 [0.02, 1.19] | 0.165 | .069 |
| Catching STI makes me feel angry disappointed | 62.00% | 69.34% | NA | NA | NA | NA | 0.432 [0.09, 2.09] | 0.432 | .297 |
| Catching STI makes me feel stupid for trusting him | 52.02% | 68.75% | NA | NA | NA | NA | 0.557 [0.13, 2.33] | 0.557 | .422 |
| Catching STI make me feel ashamed | 44.00% | 70.82% | NA | NA | NA | NA | 0.379 [0.08, 1.67] | 0.379 | .198 |
| Catching STI makes me feel worried about effects on my body | 60.00% | 79.17% | NA | NA | NA | NA | 0.345 [0.06, 1.95] | 0.345 | .229 |
| Catching STI make me feel worried about effect on baby | 39.13% | 41.67% | NA | NA | NA | NA | 0.365 [0.08, 1.70] | 0.365 | .201 |
| Catching an STI make me feel STIs are just part of life | 24.29% | 22.92% | NA | NA | NA | NA | 1.828 [0.39, 8.62] | 1.828 | .446 |
| Psychosocial mediators | |||||||||
| Depression Scale | 34.08 (12.56) | 35.91 (12.36) | NA | NA | −3.10 [−6.60, 0.40] | −8.63 [−24.98, 1.51] | NA | 1.966 | .163 |
| Coping Scale | 61.24 (11.49) | 61.56 (11.40) | NA | NA | 0.58 [−2.48, 3.64] | 0.94 [−6.50, 9.55] | NA | 0.139 | .710 |
| Self-Esteem Scale | 21.38 (4.58) | 20.87 (4.95) | NA | NA | 0.61 [−.60, 1.81] | 2.92 [−3.47, 10.48] | NA | 0.988 | .322 |
| No. of days in past 30 days mental health not good | 5.32 (8.04) | 5.92 (8.82) | 5.56 [4.11, 7.53] | 8.15 [5.82, 11.40] | NA | NA | 0.683 [0.50, 0.94] | 0.683 | .020 |
NOTE: C-SAFE = computer-delivered Sexual Awareness for Everyone; CI = confidence interval; I = intervention; C, control; STI = sexually transmitted infection; NA = not applicable.
Adjusted by covariates: corresponding baseline variable, “number of sex partners in last 30 days,” “used alcohol or drugs during last sex,” “fear making changes in sexual behavior because of fear of upsetting a man you really like,” and “condoms feel uncomfortable/irritate your or your partner’s skin.”
% relative change = [D/C * 100%] and 95% confidence interval around the % relative change.
Adjusted odds ratios (OR) and likelihood ratios calculated with the control comparison condition as the referent (OR = 1.0).
Test statistics listed consist of F for continuous variables and Exp(B) for count and categorical variables.