TABLE 1.
Demographic and Behavioral Characteristics of Women Enrolled in the Contraceptive CHOICE Project by Baseline Sexually Transmitted Infection (STI) Status (n = 4691)
| Baseline STI Status | Univariate Regression | ||||||
|---|---|---|---|---|---|---|---|
|
| |||||||
| Overall (n = 4691) | Negative (n = 4356) | Positive (n = 335) | Relative Risk (95% CI) | ||||
|
| |||||||
| n | % | n | % | n | % | ||
| Recruitment location | |||||||
| Abortion clinic | 697 | 14.9 | 621 | 14.3 | 76 | 22.7 | 1.8 (1.4, 2.4) |
| University research clinic | 3359 | 71.6 | 3149 | 72.3 | 210 | 62.7 | Referent |
| Community clinic | 635 | 13.5 | 586 | 13.4 | 49 | 14.6 | 1.3 (0.9, 1.7) |
| Demographic characteristics | |||||||
| Age (yr) | |||||||
| >18 | 189 | 4.0 | 177 | 4.1 | 12 | 3.6 | 1.1 (0.6, 2.0) |
| 18–20 | 765 | 16.3 | 679 | 15.6 | 86 | 25.7 | 2.0 (1.5, 2.7) |
| <21–25 | 1894 | 40.4 | 1767 | 40.5 | 127 | 37.9 | 1.1 (0.9, 1.5) |
| >25 | 1843 | 39.3 | 1733 | 39.8 | 110 | 32.8 | Referent |
| Race | |||||||
| Black | 2246 | 48.1 | 1973 | 45.5 | 273 | 81.5 | 5.7 (4.2, 7.8) |
| White | 2078 | 44.5 | 2029 | 46.8 | 49 | 14.6 | Referent |
| Other | 344 | 7.4 | 331 | 7.6 | 13 | 3.9 | 1.6 (0.9, 3.0) |
| Trouble paying for basic necessities in past 12 mo or currently receives public assistance* | |||||||
| Yes | 2660 | 56.7 | 2417 | 55.5 | 243 | 72.5 | 2.1 (1.7, 2.7) |
| No | 2031 | 43.3 | 1939 | 44.5 | 92 | 27.5 | Referent |
| Insurance | |||||||
| None | 2029 | 43.6 | 1850 | 42.8 | 179 | 53.9 | 2.2 (1.7, 2.8) |
| Private | 2058 | 44.2 | 1970 | 45.6 | 88 | 26.5 | Referent |
| Medicaid/Medicare | 567 | 12.2 | 502 | 11.6 | 65 | 19.6 | 2.9 (2.1, 4.1) |
| Social and Reproductive Characteristics | |||||||
| No. sexual partners in past 30 d | |||||||
| 0 | 931 | 19.9 | 857 | 19.7 | 74 | 22.1 | Referent |
| 1 | 3483 | 74.3 | 3266 | 75.1 | 217 | 64.8 | 0.8 (0.6, 1.0) |
| >1 | 270 | 5.8 | 226 | 5.2 | 44 | 13.1 | 2.3 (1.5, 3.4) |
| Self-reported history of STI† | |||||||
| Yes | 1889 | 40.3 | 1719 | 39.5 | 170 | 50.7 | 1.6 (1.3, 2.0) |
| No | 2802 | 59.7 | 2637 | 60.5 | 165 | 49.3 | Referent |
| Reported experiencing STI symptoms during past 7 d‡ | |||||||
| Yes | 708 | 15.1 | 629 | 14.4 | 79 | 23.6 | 1.8 (1.4, 2.4) |
| No | 3983 | 84.9 | 3727 | 85.6 | 256 | 76.4 | Referent |
| Relationship characteristics | |||||||
| Living with a partner or spouse | |||||||
| Yes | 1595 | 34.0 | 1536 | 35.3 | 59 | 17.6 | 0.4 (0.3, 0.5) |
| No | 3096 | 66.0 | 2820 | 64.7 | 276 | 82.4 | Referent |
| Length of time having sex with main partner | |||||||
| No sex or ≤3 mo | 701 | 17.2 | 645 | 17.0 | 56 | 19.4 | Referent |
| 4 mo to >1 yr | 794 | 19.4 | 723 | 19.0 | 71 | 24.7 | 1.1 (0.8, 1.6) |
| ≥1 yr | 2591 | 63.4 | 2430 | 64.0 | 161 | 55.9 | 0.8 (0.6, 1.0) |
| Any unprotected sex during past 30 d | |||||||
| Yes | 2410 | 54.2 | 2240 | 54.4 | 170 | 51.8 | 0.9 (0.7, 1.1) |
| No | 2037 | 45.8 | 1879 | 45.6 | 158 | 48.2 | Referent |
Note: Not all columns sum to 4691: 23 missing race, 37 missing insurance, 7 missing number sexual partners in past 30 d, 605 did not have a main partner, and 244 missing condom information during past 30 d.
Trouble paying for basic expenses: transportation, housing, health or medical care, or food; public assistance: current receipt of food stamps, WIC, welfare, or unemployment.
History of chlamydia, gonorrhea, syphilis, trichomoniasis, genital herpes, human papillomavirus, or HIV/AIDS.
Reported experiencing vaginal discharge, itching, or odor, pain with sexual intercourse, or pelvic pain during past 7 d at time of baseline interview and STI testing.
RR indicates relative risk; 95% CI, 95% confidence interval.