Objectives: This study investigated and compared the prevalence and
distribution of high-risk human papillomavirus (HR-HPV) genotypes in Tongliao and
Huidong regions of China. Materials and methods: A cross-sectional study
of the results of cervical cancer screening was conducted between August 2017 and
April 2018 in Tongliao, Inner Mongolia as well as Huidong, Sichuan Province,
China. Totals of 2351 and 1583 women recruited in Tongliao and Huidong,
respectively, who underwent cytology sampling, collected for thinprep cytologic
tests (TCT) and PCR-based HPV genotyping tests. Participants whose HPV and TCT
results met relevant indications were referred for colposcopy. Results:
The overall prevalence in the Tongliao and Huidong cohorts were 19.35% and
10.4% (P 0.05), among which the five most common genotypes were
HPV16 (3.91%), 52 (3.79%), 53 (2.42%), 68 (2.04%), and 51 (1.96%) in
Tongliao and HPV52 (2.27%), 16 (1.58%), 58 (1.39%), 51 (1.39%), and 53
(0.95%) in Huidong. In both cohorts, single-type infections were more common
than multiple-type infections. HPV16 was the most common genotype in high-grade
squamous intraepithelial lesions. In the Tongliao cohort, HPV33, HPV52, and HPV58
showed a risk of carcinogenesis similar to HPV18. Conclusions: This
study provides information on HPV prevalence and genotype distribution in
Tongliao and Huidong. The HPV prevalence and genotype distribution were found to
differ geographically. The HPV genotyping tests provided more details, which can
be instructive and meaningful for both the prevention and management of HPV
infection and cervical lesions.