Table 3.
Characteristics of the first episode of sexualized use for different drugs by age among MSMa from Madrid and Barcelona.
| All | Age | P -value | |||||
|---|---|---|---|---|---|---|---|
| <25 | 25–39 | ≥40 | |||||
| Purpose of the first use b | Sexualized use in the first use | Amphetamine | 28.0 | 25.0 | 28.3 | 28.2 | |
| Cocaine | 23.6 | 23.5 | 24.2 | 22.4 | |||
| Ecstasy | 23.1 | 13.5 | 24.6 | 23.6 | |||
| Ketamine | 41.9 | 42.9 | 40.3 | 46.3 | |||
| GHB/GBL | 56.6 | 65.9 | 52.5 | 64.6 | |||
| Methamphetamine | 69.6 | 61.5 | 70.6 | 70.6 | |||
| Mephedrone | 72.2 | 58.3 | 69.5 | 85.7 | †, ¥ | ||
| Have used <5 days for other purpose before first sexualized use | Amphetamine | 26.3 | 25.0 | 27.6 | 23.1 | ||
| Cocaine | 30.1 | 26.5 | 30.8 | 29.6 | |||
| Ecstasy | 27.9 | 35.1 | 28.1 | 23.6 | |||
| Ketamine | 23.6 | 21.4 | 22.4 | 29.3 | |||
| GHB/GBL | 19.2 | 15.9 | 21.2 | 14.6 | |||
| Methamphetamine | 16.0 | 19.2 | 15.0 | 17.6 | |||
| Mephedrone | 12.0 | 8.3 | 13.6 | 8.9 | †, ¥ | ||
| Have used >5 days for other purpose before first sexualized use | Amphetamine | 45.7 | 50.0 | 44.1 | 48.7 | ||
| Cocaine | 46.3 | 50.0 | 45.1 | 48.0 | |||
| Ecstasy | 48.9 | 51.4 | 47.3 | 52.8 | |||
| Ketamine | 34.5 | 35.7 | 37.3 | 24.4 | |||
| GHB/GBL | 24.2 | 18.2 | 26.3 | 20.7 | |||
| Methamphetamine | 14.3 | 19.2 | 14.4 | 11.8 | |||
| Mephedrone | 15.8 | 33.3 | 16.9 | 5.4 | †, ¥ | ||
| Intentionally for sex b | Amphetamine | 23.8 | 20.0 | 21.4 | 33.3 | ||
| Cocaine | 27.1 | 23.5 | 25.0 | 32.5 | |||
| Ecstasy | 14.6 | 16.2 | 14.5 | 14.1 | |||
| Ketamine | 36.6 | 28.6 | 36.8 | 41.5 | |||
| GHB/GBL | 61.9 | 54.5 | 60.0 | 72.0 | ¥ | ||
| Methamphetamine | 71.5 | 65.4 | 72.3 | 72.0 | |||
| Mephedrone | 66.8 | 69.6 | 63.9 | 73.7 | |||
| Mode of drug acquisition b | Had got the drug before | Amphetamine | 56.2 | 65.0 | 57.1 | 48.7 | |
| Cocaine | 48.2 | 52.9 | 51.3 | 40.0 | |||
| Ecstasy | 63.0 | 75.7 | 62.7 | 57.1 | |||
| Ketamine | 39.8 | 53.6 | 41.7 | 24.4 | ¥, ‡ | ||
| GHB/GBL | 30.3 | 39.5 | 28.1 | 32.1 | |||
| Methamphetamine | 16.2 | 19.2 | 15.2 | 18.0 | † | ||
| Mephedrone | 24.7 | 37.5 | 24.7 | 19.3 | |||
| Bought it where he had sex | Amphetamine | 2.7 | 5.0 | 2.4 | 2.6 | ||
| Cocaine | 2.8 | 5.9 | 2.2 | 3.2 | |||
| Ecstasy | 5.1 | 2.7 | 5.8 | 4.3 | |||
| Ketamine | 3.5 | 7.1 | 1.5 | 7.3 | ¥, ‡ | ||
| GHB/GBL | 4.7 | 7.0 | 3.9 | 6.2 | |||
| Methamphetamine | 4.7 | 15.4 | 3.8 | 2.0 | † | ||
| Mephedrone | 8.5 | 8.3 | 10.4 | 3.5 | |||
| Was given free where he had sex | Amphetamine | 41.1 | 30.0 | 40.5 | 48.7 | ||
| Cocaine | 49.1 | 41.2 | 46.5 | 56.8 | |||
| Ecstasy | 31.9 | 21.6 | 31.6 | 38.6 | |||
| Ketamine | 56.7 | 39.3 | 56.8 | 68.3 | ¥, ‡ | ||
| GHB/GBL | 65.0 | 53.5 | 68.0 | 61.7 | |||
| Methamphetamine | 79.1 | 65.4 | 81.0 | 80.0 | † | ||
| Mephedrone | 66.8 | 54.2 | 64.9 | 77.2 | |||
| Had sex only with steady partner b | Amphetamine | 14.5 | 5.0 | 16.5 | 12.8 | ||
| Cocaine | 17.7 | 20.6 | 14.8 | 23.6 | ‡ | ||
| Ecstasy | 18.4 | 16.2 | 17.0 | 23.9 | |||
| Ketamine | 12.0 | 14.3 | 10.7 | 14.6 | |||
| GHB/GBL | 9.7 | 9.1 | 9.3 | 11.1 | |||
| Methamphetamine | 6.8 | 7.7 | 7.0 | 6.0 | |||
| Mephedrone | 8.1 | 16.7 | 7.1 | 7.1 | |||
| Did not used a condom with any partner c | Amphetamine | 34.6 | 26.3 | 33.0 | 44.1 | ||
| Cocaine | 27.2 | 37.0 | 27.5 | 23.4 | |||
| Ecstasy | 26.2 | 22.6 | 25.3 | 31.5 | |||
| Ketamine | 45.5 | 37.5 | 47.0 | 45.7 | |||
| GHB/GBL | 40.8 | 37.5 | 40.2 | 44.4 | |||
| Methamphetamine | 56.9 | 58.3 | 53.7 | 66.0 | |||
| Mephedrone | 50.2 | 45.0 | 49.7 | 53.8 | |||
aMSM, men who have sex with men.
b
The percentages have been calculated on the number of participants who had consumed each substance to have sex.
c
The percentages have been calculated on the number of participants who had consumed each substance for SDU with occasional partners (regardless of whether or not he also had sex with his steady partner)
†
p-value (< 25; 25–39) < 0.05;
¥
p-value (< 25; ≥40) < 0.05;
‡
p-value (25–39; ≥40) < 0.05.