Table 3.
Logistic regression analyses of characteristics of participants with STI in EMIS, SMON, and SOAPa
| EMIS | SMON | SOAP | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STI+ | Univariable | Multivariable | STI+ | Univariable | Multivariable | STI+ | Univariable | Multivariable | ||||
| No. | % | OR (95 % CI) | aOR (95 % CI) | No. | % | OR (95 % CI) | aOR (95 % CI) | No. | % | OR (95 % CI) | aOR (95 % CI) | |
| Age group (years)b | ||||||||||||
| < 35 | 242 | 17.9 | 1.0 | 1.0 | 227 | 15.1 | 1.0 | 1.0 | 409 | 26.2 | 1.0 | 1.0 |
| 35°F49 | 439 | 26.9 | 1.7 (1.4–2.0) | 1.1 (0.8–1.4) | 338 | 25.5 | 1.9 (1.6–2.3) | 0.9 (0.6–1.2) | 401 | 25.0 | 0.9 (0.8–1.1) | 1.0 (0.7–1.3) |
| > 49 | 250 | 31.1 | 2.1 (1.7–2.5) | 1.2 (0.9–1.7) | 223 | 28.9 | 2.3 (1.9–2.8) | 1.2 (0.8–1.8) | 172 | 27.1 | 1.0 (0.9–1.3) | 0.8 (0.6–1.2) |
| Residenceb | ||||||||||||
| Outside Amsterdam | 514 | 21.8 | 1.0 | 1.0 | 510 | 18.6 | 1.0 | 1.0 | 586 | 25.9 | 1.0 | 1.0 |
| Amsterdam | 318 | 31.2 | 1.6 (1.4–1.9) | 1.0 (0.8–1.3) | 255 | 36.1 | 2.5 (2.1–3.0) | 1.6 (1.1–2.2) | 366 | 25.5 | 1.0 (0.8–1.1) | 0.9 (0.7–1.2) |
| Ethnicity | ||||||||||||
| Dutch | 685 | 24.2 | 1.0 | 1.0 | 671 | 21.4 | 1.0 | 1.0 | 776 | 24.9 | 1.0 | 1.0 |
| Other | 246 | 25.8 | 1.0 (0.9–1.3) | 1.1 (0.8–1.4) | 117 | 24.8 | 1.2 (1.0–1.5) | 1.0 (0.6–1.5) | 206 | 30.0 | 1.3 (1.1–1.6) | 1.4 (1.0–2.1) |
| Number of partnersb | ||||||||||||
| 1–2 | 80 | 15.2 | 1.0 | 1.0 | 83 | 14.2 | 1.0 | 1.0 | 250 | 26.6 | 1.0 | 1.0 |
| 3–5 | 130 | 19.3 | 1.3 (1.0–1.8) | 1.1 (0.7–1.6) | 151 | 19.0 | 1.4 (1.1–1.9) | 0.8 (0.5–1.4) | 261 | 23.6 | 0.9 (0.7–1.0) | 0.7 (0.5–1.0) |
| 6–10 | 152 | 26.7 | 2.0 (1.5–2.7) | 1.5 (1.0–2.3) | 172 | 33.6 | 3.1 (2.3–4.1) | 1.4 (0.8–2.3) | 216 | 29.2 | 1.1 (0.9–1.4) | 0.9 (0.6–1.3) |
| 11–20 | 154 | 30.6 | 2.5 (1.8–3.3) | 1.7 (1.1–2.5) | 141 | 36.0 | 3.4 (2.5–4.6) | 1.6 (0.9–2.7) | 88 | 22.7 | 0.8 (0.6–1.1) | 0.8 (0.5–1.2) |
| 21–50 | 169 | 38.7 | 3.5 (2.6–4.8) | 2.1 (1.4–3.2) | 113 | 47.9 | 5.6 (3.9–7.8) | 2.3 (1.3–4.1) | 58 | 23.2 | 0.8 (0.6–1.2) | 0.6 (0.3–1.1) |
| > 50 | 137 | 54.8 | 6.8 (4.8–9.6) | 3.4 (2.2–5.2) | 27 | 55.1 | 7.4 (4.0–13.6) | 3.1 (1.2–8.2) | 103 | 30.5 | 1.2 (0.9–1.6) | 1.0 (0.6–1.8) |
| Condom use last partnerb | ||||||||||||
| Yes | 358 | 24.1 | 1.0 | 1.0 | 200 | 26.6 | 1.0 | 1.0 | 235 | 26.9 | 1.0 | 1.0 |
| No | 455 | 31.4 | 1.4 (1.2–1.7) | 1.3 (1.1–1.6) | 167 | 34.4 | 1.4 (1.1–1.9) | 1.1 (0.8–1.5) | 126 | 20.8 | 0.7 (0.6–0.9) | 0.7 (0.6–0.9) |
| Drugs | ||||||||||||
| No | 207 | 12.9 | 1.0 | 1.0 | 196 | 11.0 | 1.0 | 1.0 | ||||
| Yes 1 | 218 | 23.3 | 2.1 (1.7–2.5) | 1.7 (1.3–2.3) | 193 | 23.3 | 2.5 (2.0–3.1) | 1.2 (0.8–1.8) | ||||
| Yes > 1 | 506 | 40.7 | 4.7 (3.9–5.6) | 2.1 (1.6–2.8) | 399 | 40.5 | 5.5 (4.5–6.7) | 1.6 (1.1–2.4) | ||||
| HIVb | ||||||||||||
| Never test | 55 | 7.1 | 1.0 | 1.0 | 37 | 4.3 | 1.0 | 1.0 | 123 | 25.1 | 1.0 | 1.0 |
| HIV+ | 343 | 58.2 | 18.2 (13.2–25.1) | 9.0 (5.7–14.3) | 255 | 61.6 | 35.8 (24.4–52.6) | 17.1 (8.4–35.2) | 161 | 23.7 | 0.9 (0.7–1.2) | 0.8 (0.5–1.3) |
| HIV− | 531 | 22.1 | 3.7 (2.8–4.9) | 3.0 (2.0–4.6) | 488 | 22.6 | 6.5 (4.6–9.2) | 3.8 (2.0–7.4) | 663 | 26.4 | 1.1 (0.9–1.3) | 1.1 (0.7–1.6) |
95 % CI 95 % confidence interval, OR odds ratio aOR adjusted odds ratio, No. number, STI+ diagnosed or self-reported one or more sexually transmitted diseases in the last 12 months
Bold printed statistics differ, p-values < .05 are considered significant
aVariables are a priori included in multivariable analyses
bFactors differ significantly between databases, p-values < .05 are considered significant