Prevalence of Human Papillomavirus Among Chinese Han and Mongols Minority Women in Inner Mongolia, China: Reflected by Self-Collected Samples in CHIMUST

BACKGROUND: The disparities of hr-HPV infection among races/ethnicities have not been fully discussed. This study aimed to investigate the difference of hr-HPV infection between Chinese Han and Mongols minority women in Inner Mongolia. METHODS: Genotyping and histopathology data of Chinese Han and Mongols minority women in Inner Mongolia from Chinese Multi-Center Screening Trial were used to analyze the hr-HPV prevalence, and type-specific distribution in abnormal pathology results. RESULTS: The hr-HPV infection rates of Han women was 15.9% while of Mongols was 21.6% (P < 0.001). The most prevalent genotypes in Han women were ranked as HPV-16,−52,−18/-58,−31/-39, and−59 while in Mongols were−16,−31,−58,−18 and−52. When analyzing the age-specific of hr-HPV infection, two peaks were found at age of 40–44 (20.5%) and 55–59 (23.5%) years in Han women while three peaks were observed at age of 30–34 (22.1%), 45–49 (22.9%), and 55–59 (31.8%) years, respectively, in Mongols. HPV-16 accounting for 62.5 and 53.8% of the CINII+ in Han and Mongols, respectively. CONCLUSION: The prevalence of hr-HPV was significantly different between the Han and Mongols minority women in Inner Mongolia, races/ethnicities background should be taken into consideration for the refinement of cervical cancer screening strategies and vaccine implementation in China.