Risks for cervical abnormalities in women with non-16/18 high-risk human papillomavirus infections in south Shanghai, China.

Abstract

The study was aimed to analyze the prevalence characteristics of non-16/18 high-risk human papillomaviruses (HR-HPV) and the related risks for cervical abnormalities in south Shanghai. A total of 2291 HPV women who had been referred for a colposcopy due to HPV infection from @@@@@2016.12 to 2019.6 were enrolled. Combined with liquid-based thin-layer cell test (TCT) and pathological results of cervical biopsy, the infection spectrum and pathogenic risk of non-16/18 HR-HPV in local population were investigated. The results showed that the single HR-HPV infection rate was significantly higher than that of multiple infection, and the five most frequently detected types were HPV16, HPV52, HPV18, HPV53, HPV58 in the group. The total proportion of non-16/18 HR-HPV infection was 68.22%, more than twice of HPV16/18. In cases with high-grade cervical intraepithelial lesions (HSIL) or cervical cancer, non-16/18 HR-HPV infections account for 50.84% (single infection: 28.57%, multiple infection: 22.27%). The risk of cervical abnormalities caused by single HPV infection was ranked as HPV16 > HPV52 > HPV18 = HPV58 > HPV51 > HPV53 = HPV56 > others. Notably, among non-16/18 HR-HPV infected patients with HSIL/cancer lesions, the omission diagnostic rate of TCT was 62.81%. The infection rate of non-16/18 HR-HPV in whole study population was much higher than that of 16/18 type, and the infection rate of the former was also slightly higher in patients with HSIL and cancer. Due to the high omission diagnostic rate of TCT, we suggest patients with persistent non-16/18 HPV infection should undergo colposcopy biopsy to reduce missed detection of HSIL and cancers.