Multivariate analysis of risk behaviours comparing SALLEE respondents with Natsal* respondents
| Behaviour | SALLEE† (n=2323) % | Natsal†(n=2883, 1526)‡ % | Crude OR (95% CI) | Adjusted OR (95% CI)§ | p value |
| Men | n=1102 | n=1216, 773‡ | |||
| 2+ partners (past 5 years) | 77.3 | 58.9 | 2.4 (1.9 to 2.9) | 2.1 (1.6 to 2.6) | <0.001 |
| 2+ partners (past year) | 45.0 | 29.4 | 2.0 (1.6 to 2.4) | 1.7 (1.3 to 2.1) | <0.001 |
| Ever paid for sex with a woman | 35.5 | 15.8 | 2.9 (2.3 to 3.7) | 3.2 (2.5 to 4.0) | <0.001 |
| Ever injected drugs | 5.9 | 2.4 | 2.6 (1.5 to 4.5) | 2.2 (1.3 to 3.9) | 0.005 |
| Consistent condom use (past 4 weeks)¶ | 36.6 | 29.2 | 1.4 (1.1 to 1.8) | 1.2 (1.0 to 1.6) | 0.099 |
| Ever diagnosed with STI | 8.9 | 13.6 | 0.6 (0.5 to 0.8) | 0.7 (0.5 to 1.0) | 0.045 |
| Women | n=1221 | n=1667, 753‡ | |||
| 2+ partners (past 5 years) | 52.9 | 40.9 | 1.6 (1.3 to 2.0) | 1.2 (1.0 to 1.5) | 0.058 |
| 2+ partners (past year) | 18.7 | 15.6 | 1.2 (1.0 to 1.6) | 1.0 (0.8 to 1.3) | 0.915 |
| Ever injected drugs | 2.2 | 0.7 | 3.3 (1.3 to 8.8) | 3.0 (1.1 to 8.1) | 0.035 |
| Consistent condom use (past 4 weeks)¶ | 28.2 | 21.7 | 1.4 (1.1 to 1.8) | 1.3 (1.0 to 1.8) | 0.034 |
| Ever diagnosed with STI | 12.8 | 18.1 | 0.7 (0.5 to 0.9) | 0.7 (0.6 to 1.0) | 0.038 |
↵* National Survey of Sexual Attitudes and Lifestyles 2000.
↵† Restricted to London respondents aged 18–44 who reported ever having had sex (age range related to Natsal upper limit and SALLEE lower limit).
↵‡ Unweighted, weighted denominator.
↵§ Adjusted for age, relationship status, education: comparing SALLEE with Natsal respondents.
↵¶ Condoms used on all occasions of vaginal and/or anal sex in the past 4 weeks.