Table 1.
Sample characteristics and bivariate analysis of factors associated with having ever injected drugs among MSM* in Madrid and Barcelona
| Sample characteristics (N = 3387) | Prevalence of having ever injected drugs (2.1%) | Crude prevalence ratio | (95% CI**) | ||
|---|---|---|---|---|---|
| N | % | % | |||
| Recruitment | |||||
| City of testing | |||||
| Barcelona | 1031 | 30.4 | 1.6 | 1.0 | |
| Madrid | 2356 | 69.6 | 2.4 | 1.5 | 0.9–2.7 |
| Kind of testing program | |||||
| STI diagnostic center | 1642 | 48.5 | 1.7 | 1.0 | |
| Comunity program | 1745 | 51.5 | 2.5 | 1.5 | 0.9–2.4 |
| Sociodemographics | |||||
| Age (years) | |||||
| ≤ 24 | 559 | 16.5 | 2.0 | 1.3 | 0.6–3.0 |
| 25–39 | 1949 | 57.5 | 2.5 | 1.6 | 0.9–3.1 |
| ≥ 40 | 879 | 26.0 | 1.5 | 1.0 | |
| Country of birth | |||||
| Spain | 2105 | 62.1 | 1.8 | 1.0 | |
| Latin-America | 927 | 27.4 | 3.0 | 1.7 | 1.0–2.7 |
| Others | 355 | 10.5 | 1.7 | 0.9 | 0.4–2.1 |
| Years residing in Spain (for those born outside of Spain) | |||||
| ≤ 1 | 332 | 29.2 | 2.4 | ||
| 2–4 | 281 | 24.7 | 2.9 | ||
| ≥ 5 | 526 | 46.2 | 2.9 | ||
| Size of city of residence (last 12 months) | |||||
| ≤ 100.000 | 389 | 11.5 | 1.5 | 1.0 | |
| 100.000–1 million | 434 | 12.9 | 1.8 | 1.2 | 0.4–3.4 |
| > 1 million | 2547 | 75.6 | 2.3 | 1.5 | 0.6–3.4 |
| Level of education | |||||
| Up to upper secondary | 229 | 6.8 | 3.1 | 1.8 | 0.8–4.0 |
| Post secondary | 1129 | 33.5 | 2.7 | 1.5 | 0.9–2.5 |
| University | 2016 | 59.8 | 1.7 | 1.0 | |
| Employment status (last 12 months)*** | |||||
| Employed | 1737 | 74.1 | 2.3 | 1.0 | |
| Unemployed | 183 | 7.8 | 6.0 | 2.7 | 1.4–5.2 |
| Others | 424 | 18.1 | 1.4 | 0.6 | 0.3–1.5 |
| Economic situation (last 12 months) | |||||
| Comfortable/it is OK | 2022 | 59.8 | 2.2 | 1.0 | |
| Tight | 1070 | 31.7 | 2.1 | 0.9 | 0.6–1.6 |
| Dificult/very difficult | 287 | 8.5 | 2.1 | 1.0 | 0.4–2.3 |
| Cohabitation (last 12 months)*** | |||||
| Alone | 947 | 40.4 | 2.9 | 1.0 | |
| With some people | 1400 | 59.6 | 2.1 | 0.7 | 0.4–1.2 |
| Sexual and risk behavior | |||||
| Gender of sex partners (ever) | |||||
| Only men | 2119 | 62.6 | 1.5 | 1.0 | |
| Men and women | 1268 | 37.4 | 3.2 | 2.1 | 1.3–3.3 |
| Age at first sexual intercourse with another men (years) | |||||
| < 16 | 596 | 17.6 | 3.5 | 7.3 | 1.7–31.0 |
| 16–20 | 1826 | 54.0 | 2.2 | 4.5 | 1.1–18.7 |
| 21–24 | 549 | 16.2 | 1.6 | 3.4 | 0.7–15.6 |
| ≥ 25 | 412 | 12.2 | 0.5 | 1.0 | |
| Lives sex-life with men… | |||||
| Not Openly | 1297 | 38.5 | 1.4 | 1.0 | |
| Openly | 2075 | 61.5 | 2.6 | 1.9 | 1.1–3.2 |
| Place where the largest number of partners were met | |||||
| Dicos/clubs/bars | 509 | 15.6 | 1.4 | ||
| Saunas | 320 | 9.8 | 1.9 | ||
| Apps/websites | 2093 | 64.2 | 1.8 | ||
| Cruising places | 103 | 3.2 | 1.9 | ||
| Private parties | 112 | 3.4 | 17.9 | ||
| Others/no search | 122 | 3.7 | 0.0 | ||
| Place where the largest number of partners were met | |||||
| Others | 3147 | 96.6 | 1.7 | 1.0 | |
| Private parties | 112 | 3.4 | 17.9 | 10.8 | 6.5–18.1 |
| Number of men penetrated by (ever) | |||||
| None | 178 | 5.3 | 0.6 | 1.0 | |
| 1–49 | 2345 | 69.2 | 1.3 | 2.4 | 0.3–17.2 |
| ≥ 50 | 864 | 25.5 | 4.6 | 8.2 | 1.1–59.9 |
| Number of men penetrated by (last 12 months) | |||||
| None | 691 | 20.4 | 0.3 | 1.0 | |
| ≤ 5 | 1569 | 46.4 | 1.5 | 5.1 | 1.2–21.5 |
| > 5 | 1123 | 33.2 | 4.2 | 14.5 | 3.5–59.5 |
| Been paid for sex | |||||
| Never | 2660 | 78.6 | 1.5 | 1.0 | |
| > 12 months ago | 321 | 9.5 | 2.8 | 1.8 | 0.9–3.7 |
| Last 12 months | 405 | 12.0 | 5.4 | 3.5 | 2.1–5.9 |
| Paid for sex | |||||
| Never | 2805 | 82.9 | 2.0 | 1.0 | |
| > 12 months ago | 290 | 8.6 | 2.1 | 1.0 | 0.4–2.4 |
| Last 12 months | 290 | 8.6 | 3.4 | 1.7 | 0.9–3.4 |
| Ever injected steroids | |||||
| No | 3177 | 93.8 | 1.8 | 1.0 | |
| Yes | 210 | 6.2 | 6.7 | 3.7 | 2.0–6.5 |
| History of HIV and other STI testing | |||||
| Time since last HIV test | |||||
| Never tested before | 218 | 6.4 | 0.5 | 1.0 | |
| < 6 months | 1661 | 49.1 | 2.2 | 4.9 | 0.7–35.4 |
| > 6 months | 1502 | 44.4 | 2.3 | 4.9 | 0.7–36.0 |
| HIV new diagnosis in this consultation | |||||
| No | 3253 | 97.5 | 2.0 | 1.0 | |
| Yes | 82 | 2.5 | 3.7 | 1.9 | 0.6–5.9 |
| STI diagnosis (ever) | |||||
| No | 955 | 28.5 | 0.8 | 1.0 | |
| Yes | 2399 | 71.5 | 2.7 | 3.2 | 1.5–6.6 |
*MSM: men who have sex with men
**95% CI: 95% confidence interval
***These question were not included in Barcelona