RESUMO
In the UK there are limited data about university students' risky sexual behaviour. A cross-sectional web-survey was conducted to investigate factors associated with high-risk sex among students at two UK universities. High-risk sex was reported by 25% of 1108. High personal sexually transmitted infection (STI) risk perception and permissive attitudes towards casual sex were associated with high-risk sex for both men (odds ratio [OR]: 12.12; 95% confidence interval [CI]: 4.10-35.81; OR: 2.49; 95%CI: 1.11-5.56, respectively) and women (OR: 22.31; 95% CI: 9.34-53.26; OR: 3.02; 95% CI: 1.82-5.01, respectively). For men, drinking alcohol (OR: 17.67; 95% CI: 1.90-164.23) and for women age and frequent drinking (OR: 2.02; 95% CI: 1.05-3.89; OR: 1.89; 95% CI: 1.08-3.31, respectively) were associated with high-risk sex. However, perceiving an average student as more likely to contract STIs (men, OR: 0.34; 95% CI: 0.16-0.75) or HIV (men, OR: 0.44; 95% CI: 0.20-0.96; women, OR: 0.42; 95% CI: 0.28-0.63) and finding it difficult to discuss sexual matters (women, OR: 0.60; 95% CI: 0.39-0.91) were negatively associated with high-risk sex. Most of the factors found were similar to other populations, but some psychosocial factors showed complex patterns of association that require further investigation.