RESUMO
Objective To explore the correlation of propaganda methods of pre-exposure prophylactic medication with sociodemographic characteristics and obtaining services of HIV prevention in men who have sex with men (MSM) in Western China by applying multiple correspondence analysis. Methods A cross-sectional survey was carried out on 1 407 MSM who were selected from Chongqing, Sichuan, Guangxi province by snowball sampling method. Chi-square tests and multiple correspondence analysis were used for selecting variables and exploring correlation. Results Totally 1 323 qualified participants were recruited and only 31.49%(416/1 321) had ever heard of pre-exposure prophylactic medication. It was found that 74.00%(979/1 323), 65.00%(860/1 323), 44.22%(585/1 323) and 52.15%(690/1 323) of MSM were willing to obtain pre-exposure prophylactic medication knowledge via internet, traditional media, peer education and medical institutions, respectively. In multiple correspondence analysis the Cronbach α values were 0.661 and 0.632 while eigenvalues were 2.562 and 2.400 in two dimensions of all variables. Willing to obtain pre-exposure prophylactic medication knowledge via internet was strongly correlated with higher education, unmarried status, younger than 30 years old, no children and urban residency. Willing to obtain knowledge by peer education was strongly correlated with having ever received information from peers, having received promotional materials, having received free AIDS consultation and participated in activities of MSM. Conclusion Multiple correspondence analysis can directly reveal the correlation among propaganda methods of pre-exposure prophylactic medication, sociodemographic characteristics and services of HIV prevention, which provides a theoretical basis for propaganda and research of pre-exposure prophylactic medication among MSM in China.