Sexual orientation and quality of life of people living with HIV/AIDS in China: evidence from an institutional-based cross-sectional study

Background: At the end of 2019, there were approximately one million people known to be living with HIV/AIDS (PLWHA) in China. Different sexual orientation groups were observed within the people living with HIV in general, and studies have found that socially marginalized groups exist among this population, such as men who have sex with men (MSM) and bisexual individuals. Correspondingly, sexual orientation may pose challenges to the emotional and psychological development of PLWHA. Under this background, we aim to analyze whether sexual orientation affects the health-related quality of life (HRQOL) of PLWHA in order to provide evidence and suggestions for how wellbeing can be enhanced for sexual minorities living with HIV/AIDS.

Method: An institutional-based cross-sectional study design was used to collect data from PLWHA in Yunnan province and Beijing municipality in China. In our study, sexual orientation was classified as heterosexual, homosexual and bisexual, and HRQOL was measured using the Chinese WHOQOL-HIV-BREF scale. Logistic regression model was used to analyze the relationships of participants' sexual orientation and HRQOL. In addition, multivariable stepwise liner regression model was used to analyze the factors influencing HRQOL of PLWHA.

Results: In total, 2610 PLWHA were included in the study, 36.5% of the participants identified as homosexual and most were males, 13.8% were bisexuals and 49.7% were heterosexuals. For the overall HRQOL, the homosexual PLWHA group scored highest (81.53 ± 12.45) with a high HRQOL score signifying a better health-related quality of life, followed by bisexuals (79.72 ± 12.81) and heterosexuals (78.02 ± 13.06). However, the bisexual group showed a markedly higher level of spiritual health. In addition, there was no statistical difference in the total HRQOL scores and domains by sex roles among the homosexual group (p > 0.01). However, sexual orientation was statistically associated with the physical and spiritual domains of HRQOL (p < 0.05).

Conclusion: In terms of sexual orientation for those living with HIV/AIDS, a better quality of life was found for homosexual individuals, whilst being a heterosexual individual saw a negative impact on quality of life, especially in the physical and spiritual domains. Strengthening the individualized and comprehensive care for heterosexual group as well as other sexual minority populations is imperative. Moreover, heterosexual PLWHA are more likely to be ignored and require more support and care to improve their HRQOL than do those in sexual minorities.