Epidemiological survey of risk factors in area reporting high incidence of HIV/AIDS among old men aged ≥ 60 years

Objective To find out the epidemiological risk factors in the area reporting high incidence of HIV/AIDS among old men aged 60 years, and provide scientific evidence for targeted prevention and intervention. Methods In the areas reporting high case numbers or with high case proportion of HIV/AIDS of men aged 60 years, the cross-sectional survey was conducted on the high-risk behavior before infection with designed questionnaire. Results A total of 162 cases (from Duan in Guangxi, Nanchang in Jiangxi, Chengdu in Sichuan) were surveyed, 79.0% were transmitted by casual/commercial sexual partners, 11.1% were transmitted by homosexual partners, and the transmission rate through other infection routes was low. Before infection, 77.8% of the cases had commercial heterosexual contacts 30.9% had casual heterosexual contacts, 11.1% had homosexual contacts, the proportion of the cases with other high risk behaviors was low. The condom use rate was low at sex. Conclusion Unsafe sex was the major epidemiological risk factor in the area reporting high incidence of HIV/AIDS in old men aged 60 years. Attention should be paid on the sexual health and sexual safety among old men aged 60 years, and health education about HIV/AIDS shoulld be strengthened among old men.