The prevalence and distribution of human papillomavirus among 10,910 Chinese Han women

Objective: To assess the prevalence and distribution of HPV genotypes among Chinese Han women, and to explore the risk of high-grade cervical lesions associated with individual hr-HPV genotypes.MethodsGenotyping and histopathology data from the Chinese Multi-Center Screening Trial (CHIMUST) and its pilot screening trial, from 6 regions across mainland China, were re-analyzed. The data from physician (direct) collected samples from 10910 Chinese Han women (ages 30-69) were used to determine the prevalence and distribution of hr-HPV and to explore the risk association between hr-HPV genotypes and precancerous lesions.Results9.1% of the study population tested hr-HPV positive. The prevalence varied regionally rom the lowest in Guangdong (6.3%) to the highest in Inner Mongolia (12.9%). The most prevalent genotypes found were HPV-52 (21.5%), HPV-16 (19.2%), HPV-58 (15.0%), HPV-39 (8.9%), and HPV-51 (8.2%). The overall odds ratios for CIN2+ and CIN3+ for the presence of HPV-16 was 59.7 (95% CI 39.9-89.3) and, 92.0 (95%CI 54.5- 155.3), respectively and remained the highest odds ratio for CIN3+ in all 6 regions.ConclusionGeographical variation exists in the prevalence and distribution of hr-HPV in mainland China. HPV-16/52/58 were the most prevalent genotypes, and HPV-16 had the highest risk for high-grade cervical lesions.