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  • Title: Changes in human papillomavirus prevalence, incidence, and clearance among men who have sex with men in Xinjiang, China after implementation of nonpharmaceutical interventions to control COVID-19: An interrupted time series analysis.
    Author: Tian T, Fu L, Lu Z, Wu X, Luo G, Wang B, Zhou X, Lin YF, Zhang Z, Liu L, Xi M, Zhen C, Dai J, Zou H.
    Journal: Int J Infect Dis; 2023 Sep; 134():261-268. PubMed ID: 37453487.
    Abstract:
    OBJECTIVES: This study aimed to assess the effects of COVID-19 nonpharmaceutical interventions (NPIs) on the human papillomavirus (HPV) epidemic among men who have sex with men (MSM) in Xinjiang, China. METHODS: In our cohort study, we enrolled and followed HIV-negative MSM in Xinjiang, China, between 2016 and 2022. Anal swab samples were collected to test for HPV DNA. We used interrupted time series analysis to characterize the temporal trends in HPV prevalence, incidence, and clearance before (September 01, 2016, to July 16, 2020) and during the implementation of COVID-19 NPIs in Xinjiang (July 17, 2020, to March 31, 2022). We used binomial segmented regression models to estimate the impact of COVID-19 NPIs on HPV prevalence, incidence, and clearance. RESULTS: We recruited 1296 MSM who contributed to a total of 5374 HPV tests in our study. COVID-19 NPIs were associated with a 37.9% decrease in the prevalence (prevalence ratio, 0.621; 95% confidence interval, 0.465-0.830), 52.2% decrease in the incidence (risk ratio, 0.478; 0.377-0.606), and 40.4% increase in the clearance (risk ratio, 1.404; 1.212-1.627) of HPV of any genotype after the implementation of COVID-19 NPIs in Xinjiang. CONCLUSION: COVID-19 NPIs may lead to lower transmission and higher clearance of HPV among MSM. Future studies are needed to clarify the longer-term impact of COVID-19 on the transmission and natural history of HPV among MSM.
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