ABSTRACT
Objective:Analysis of subtype distribution characteristics of human papillomavirus (HPV) infection, pathological findings of HPV-positive patients operated colposcopy and cervical histopathological examination in Changsha from 2020 to 2022.Methods:Retrospective analysis of HPV infection status of 60 354 patients was treated in the First Affiliated Hospital of Hunan University of Chinese Medicine from Jan. 2020 to Oct. 2022. They were divided into<25 years old group (3 250 cases), 25-34 years old group (19 406 cases), 35-44 years old group (17 297 cases), 45-54 years old group (13 104 cases), 55-64 years old group (4 793 cases) and≥65 years old group (2 504 cases). Cervical exfoliated cells were collected from women and specimen of lesion site were collected from men. HPV genotyping detection used polymerase chain reaction (PCR) and flow fluorescence hybridization, which could detect 27 HPV genotypes. Analyze the distribution of HPV subtypes in patients of different age groups and different treatment departments. Analyze the relationship between the infection of HPV subtypes and the outcome of 224 patients with HPV positive who also underwent colposcopy and cervical histopathology. Pearson correlation test was used for correlation analysis, and two-tailed P<0.05 was statistically significant; Pearson chi-square test or continuous correction chi-square test was used to compare the rates between groups, and two-tailed P<0.05 was statistically significant; Chi-square split test was used to compare multiple sample rates. The standard test was corrected according to the number of groups and then compared. The difference was statistically significant when the two-tailed P value was less than the corrected standard test. Results:The overall positive rate of HPV was 16.4% (9 909/60 354). Among all HPV positive patients, affection of single type HPV accounted for 75.5% (7 479/9 909) and affection of multi-type HPV accounted for 24.5% (2 430/9 909). The top six HPV types with infection rates from high to low were: HPV52 22.8% (2 256/9 909), HPV58 11.1% (1 097/9 909), HPV53 10.5% (1 045/9 909), HPV16 9.0% (890/9 909), HPV61 7.8% (774/9 909) and HPV6 7.6% (750/9 909). The difference of overall infection rate between different age groups was statistically significant (χ 2=536.90, P<0.001). The HPV infection rate was the highest in the<25 years old group, 30.1% (978/3 250), and it is higher than the age groups of 25-34 years old, 15.6% (3 035/19 406), group of 35-44 years old, 14.2% (2 464/17 297), group of 45-54 years old, 16.1% (2 115/13 104), group of 55-64 years old, 19.1% (915/4 793) and group of≥65 years old, 16.1% (402/2 504), with statistical significance( P<0.001 respectively). The most common types of HPV infection were type 6, 16.7% (378/2 266) and type 11, 10.5% (239/2 266) in dermatology clinics. The positive rate of HPV16 accounted for 12/17 in cervical intraepithelial neoplasia (CIN) 3 and cervical cancer cases, it was significantly higher than that in the inflammatory cases, 25.0% (35/140) and CIN1 cases, 23.0% (11/48), the statistical values were χ 2=15.02, P<0.001 and χ 2=12.48, P<0.001, respectively, all of which were statistically significant. Conclusions:HPV infection rate is highest in young people under 25 years old. Low-risk HPV6 and 11 are the main types of skin and venereal diseases. Among the total cases, high-risk HPV52, 58 and 53 are the most common types of infection with women in Changsha. However, high-grade cervical intraepithelial neoplasia and cervical cancer are more closely related to HPV16 infection.