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Age-specific prevalence and genotype distribution of male HPV infection in Jinshan District, Shanghai, China: A single-center cross-sectional study.
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Abstract
ObjectiveTo estimate the prevalence of human papillomavirus (HPV) infection among males in Jinshan District, Shanghai, China.MethodsStudy design: single-center, retrospective cross-sectional study.
settingTinglin Hospital, Jinshan District, Shanghai, China.
participants116 males aged 22-71 years from outpatient, inpatient, and routine physical examination settings. OUTCOMES: overall HPV prevalence, age-specific prevalence, and genotype distribution (high-risk and low-risk).ResultsWe first describe the overall and age-specific prevalence, followed by genotype distribution and the pattern of single versus multiple infections. A total of 116 males aged 22 to 71 years old were enrolled for investigation. The overall HPV infection rate was 31.90% (37/116). The infection rates of different HPV subtypes in various age groups were listed as follows: 12% (3/25) for the 22-30 age group, 27.59% (8/29) for the 31-40 age group, 50% (18/36) for the 41-50 age group, 16.67% (3/18) for the 51-60 age group, and 62.5% (5/8) for the over 60 age group. Among the infected individuals, 27 out of 116 (23.28%) suffered from single subtype infections, while 8 individuals (6.90%) endured dual infections, and 2 individuals (1.72%) had three or more subtypes detected. High-risk HPVs accounted for 30.17%, with the highest infection rates observed in HPVs including HPV-53, HPV-58, HPV-52, HPV-16, and HPV-31. In comparison, low-risk HPVs accounted for 12.93%, with the highest infection rates seen in HPVs including HPV-6, HPV-81, and HPV-11. Apart from that, HPVs such as HPV-18, HPV-59, HPV-73, HPV-70 and HPV-83 were not detected in any of the specimens.ConclusionMales are predominantly infected with a single-subtype HPV infection. The infection rate is highest in the age group of 60 and above, while the infection rate is the lowest in the age group of 22-30 years. It is essential to formulate corresponding strategies and screening plans for the elderly over 60 years to lower or prevent the risk of HPV infection.
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