Gunby et al. BMC Public Health 2012, 12:216 http://www.biomedcentral.com/1471-2458/12/216 Variable Alcohol consumption Table 4 Multivariate comparison of factors associated with students experiencing alcohol-related non-consensual sex, by sex Disagree Reference 7.82 0.020 Not entered into the model A is mildly drunk, B severely. B is too drunk to give consent. They have sex. Next day B states rape occurred. Should A be held responsible for rape? Being drunk when having sex increases the likelihood of a false rape allegation Have sex with: Consent is about having the freedom to choose to have sex No A and B are severely drunk. A is too drunk to establish if consents present. B is too drunk to consent. Both have sex. Next day B states rape occurred. Should A be held responsible for rape? How would you describe this? Consensual Not entered into the model Category Female students Adjusted odds ratio (95% confidence interval) Reference Non hazardous Hazardous 2.82 (1.96-4.06) Undecided 0.93 (0.58-1.50) Agree Disagree 1.51 (1.03-2.19) Reference Undecided 0.70 (0.36-1.36) 0.53 (0.35-0.82) Not entered into the model Not entered into the model Agree Opposite sex Same sex Both sexes Unsure Yes Rape A mid- point Undecided Wald P - - 30.85 < 0.001 0.08 4.54 8.67 1.12 8.34 0.774 0.033 0.290 0.004 Male students Adjusted odds ratio (95% confidence interval) Not entered into the model 0.013 Not entered into the model Page 8 of 12 Wald P Reference 2.80 (1.07-7.32) 6.60 (1.60-27.17) Reference 0.20 (0.05-0.76) 0.84 (0.34-2.05) Reference 0 0.99 (0.45-2.19) 0.08 (0.01-0.70) 10.26 0.006 4.39 6.83 6.79 5.57 0.15 5.69 0 0 5.26 0.036 0.009 0.034 0.018 0.696 0.128 0.999 0.986 0.022 Only variables (or variable strata) significantly related to the dependent variable are retained in the logistic regression model. N = 789 for the female logistic regression model. Hosmer and Lemeshow Goodness-of-Fit Test: X2 = 1.18, P = 0.95. N = 250 for the male logistic regression model. Hosmer and Lemeshow Goodness-of-Fit Test: X2 = 1.70, P = 0.95. quarters of women agreed that being drunk increased the likelihood of a false rape allegation; a significantly smaller proportion of women who had experienced alco- hol-related non-consensual sex thought this was the case (AOR = 0.53, 95% CI = 0.35-0.82). Compared to men who had sex with women only, a greater proportion of men who had sex with other men had experienced alcohol-related non-consensual sex (AOR = 2.80, 95% CI = 1.07-7.32), as had a greater pro- portion of men who had sex with both men and women (AOR = 6.60, 95% CI = 1.60-27.17) although some cell counts were small. A smaller proportion of men who had experienced alcohol-related non-consensual sex were unsure that consent is about having the freedom to choose to have sex (AOR = 0.20, 95% CI = 0.05- 0.76). Finally, when presented with a hypothetical sce- nario involving two disproportionately drunk people who have sex, a greater proportion of men who had experienced alcohol-related non-consensual sex were undecided around the classification of the intercourse compared to the proportion who deemed it consensual (AOR = 0.08, 95% CI = 0.01-0.70). Discussion Despite amendments to English and Welsh law rape conviction rates remain low [8-11]. Low conviction rates are particularly evident when the complainant is volun- tarily intoxicated by alcohol [2,12]; a situation of some concern in light of Police data that show the complai- nant has been drinking alcohol in approximately half of