TABLE 3.
—Logistic Regression Adjusted Odds Ratios for AIDS Risks Among Study Participants: Massachusetts, 1995–1999
| 4 or More Sexual Partners (n = 2877), OR (95% CI) | Condom Use at Most Recent Intercoursea (n = 2426),OR (95% CI) | Ever Diagnosed With STDb (n = 1218), OR (95% CI) | Any Lifetime Injection Drug Use (n = 3154), OR (95% CI) | |
| Ethnicity (vs White) | ||||
| Black | 4.35* (3.03, 6.26) | 1.63* (1.12, 2.36) | 2.12 (0.54, 8.28) | 0.67 (0.28, 1.62) |
| Hispanic | 2.07* (1.51, 2.84) | 1.17 (0.84, 1.62) | 2.00 (0.88, 4.54) | 0.65 (0.32, 1.31) |
| Asian | 1.07 (0.67, 1.69) | 0.84 (0.54, 1.32) | 1.32 (0.44, 3.93) | 1.05 (0.56, 1.95) |
| Other/mixed ethnicity | 1.66* (1.16, 2.37) | 1.17 (0.79, 1.72) | 2.38 (0.55, 10.37) | 1.12 (0.49, 2.55) |
| School community (vs urban) | ||||
| Suburban | 0.67* (0.47, 0.87) | 1.09 (0.88, 1.33) | 0.81 (0.37, 1.78) | 1.33 (0.87, 2.07) |
| Rural | 0.64* (0.52, 0.85) | 0.80 ( 0.60, 1.07) | 0.55 (0.19, 1.54) | 1.25 (0.72, 2.17) |
| Age (increase/decrease per year) | 1.13* (1.04, 1.22) | 0.87* (0.81, 0.95) | 0.94 (0.73, 1.21) | 0.70* (0.62, 0.81) |
| Any school AIDS education | 0.48* (0.36, 0.66) | 1.53* (1.11, 2.09) | 0.52 (0.19, 1.41) | 0.18* (0.12, 0.28) |
| Any school condom instruction | . . . | 1.34* (1.09, 1.65) | 0.93 (0.39, 2.24) | . . . |
| Any sexual contact against will | 2.44* (1.71, 3.48) | 0.62* (0.44, 0.87) | 7.04* (3.01, 16.48) | 5.86* (3.92, 8.76) |
| Sexual partner(s) (vs female only) | ||||
| Male only | 0.51 (0.24, 1.09) | 0.91 (0.56, 1.48) | 1.07 (0.22, 5.11) | 0.57 (0.24, 1.35) |
| Both male and female | 2.92* (1.58, 5.39) | 0.36* (0.18, 0.72) | 5.40* (1.80, 16.16) | 3.12* (1.66, 5.88) |
Note. OR = odds ratio; CI = confidence interval; STD = sexually transmitted disease.
aAmong those who had ever had “sexual intercourse.”
b1999 only.
*P < .05.