TABLE 1.
Demographic Characteristics and Risk Behaviors Among Adolescent Girls and Young Urban Women in 3 US Cities: Project SHIELD, 2000–2001
| Have Had Anal Intercourse (n = 113), % or Mean (SD) | Have Not Had Anal Intercourse (n = 646), % or Mean (SD) | χ2 or ta | df | |
| White | 29 | 18 | 8.08* | 3 |
| Estimated family income < $30 000 | 71 | 75 | 0.688 | 1 |
| Sexual orientation other than heterosexual | 15 | 8 | 8.26* | 3 |
| Living with partner | 28 | 17 | 8.43** | 1 |
| Partner has threatened or forced sexual intercourse | 1 | 4 | 16.95*** | 1 |
| Has attempted suicide | 29 | 18 | 6.75** | 1 |
| Used drugs/alcohol at time of last sexual act | 19 | 19 | 0.004 | 1 |
| Sexual partner had multiple partners | 44 | 30 | 8.53** | 1 |
| Had sexual intercourse with sex trader | 1 | 2 | 0.42 | 1 |
| Ever diagnosed with STI | 27 | 21 | 2.00 | 1 |
| Age at sexual debut, y | 14.6 (1.8) | 14.9 (2.0) | −1.69 | 757 |
| Sexual partners in prior 90 d, no. | 2.03 (2.5) | 1.52 (1.3) | 2.09* | 122 |
| Percentage of vaginal sexual acts protected | 0.22 (0.30) | 0.39 (.38) | −4.89*** | 188 |
| Drug influence scale score | 6.6 (2.0) | 5.9 (2.1) | 3.05** | 738 |
| Hedonism scale for condom use score | 11.5 (3.8) | 10.2 (3.9) | 3.38*** | 750 |
| Perceived invulnerability scale score | 2.9 (1.3) | 2.8 (1.4) | 0.659 | 750 |
| Other drugs scale score | 0.42 (.83) | 0.26 (.71) | 1.91 | 142 |
| Alcohol use in previous 30 days, d | 4.17 (6.5) | 3.92 (5.8) | 0.412 | 741 |
| Marijuana use in previous 30 days, d | 9.93 (11.6) | 8.15 (10.1) | 1.30 | 113 |
Note. STI = sexually transmitted infection.
a
Dichotomous variables were compared by the χ2 test. All others were compared by the t test.
*P < .05; **P < .01; ***P < .001.