Ethics approval was obtained from the Ethics Committee of the Chinese University of Hong Kong.
Information on respondents' age, education level, employment status (whether working full-time), and self-identified sexual orientation (homosexual, bisexual, heterosexual, or not certain) was collected.
Separate univariate and multivariate logistic regression analyses were conducted to identify factors in association with UAI in the two groups (Group I and Group V).
All statistical analyses were performed using SPSS for Window 14.0 and a p-value .
Each questionnaire took about 15 minutes to complete.
The variables compared include socio-demographics, prevalence of self-reported sexually transmitted diseases (STD), risk behaviors, service utilization and socio-cultural characteristics.
and 3 were inter-correlated, a summary multivariate model was fitted to identify variables that were independently associated with the mode of recruitment.
Variables showing significant univariate between-group differences were used as candidate variables in a stepwise multivariate logistic regression model discriminating Group I versus Group V respondents.
Of all respondents, respectively 62.5%, 62.7% and 65.3% reported perceiving a fair amount to a great deal of discrimination against MSM in Hong Kong, feeling discriminated against, or experiencing pressure from family/friends due to their sexual orientation (Table ).
Group I respondents were more likely than Group V respondents to have provided responses indicating perceived discrimination or social pressure to the aforementioned 3 items (univaraite OR ranged from 1.85 to 5.86, p ).