Objective: To investigate the antibody testing demand and its influencing factors among college students in Shaoxing City Zheijiang Province, so as to provide evidence for carrying out HIV antibody testing services for college students. Methods: From November to December 2022, stratified cluster random sampling method was used to survey college students from 13 colleges in Shaoxing City. Data on socio-demographic information, demand for HIV antibody testing, sexual behaviors, and HIV-related knowledge were collected through a self - designed questionnaire. Factors affecting HIV antibody demand among college students were analyzed using a multivariable logistic regression model. Results: A total of 43 716 college students were surveyed, including 19 471 males (44.54%) and 24 245 females (55.46%). There were 2 004 college students (4.58%) with HIV antibody testing demand. Multivariable logistic regression analysis showed that female students (OR=1.344, 95%CI: 1.217-1.485), those in undergraduate institutions (OR=1.296, 95%CI: 1.168-1.438), homosexuals (OR=1.742, 95%CI: 1.301-2.333) or bisexual/uncertain (OR=1.342, 95%CI: 1.171-1.537), those who had sexual experience (OR=1.416, 95%CI: 1.210-1.657), those who had sex with men in the past 6 months (OR=2.164, 95%CI: 1.405-3.333), those who received HIV testing promotion at school in the past year (OR=1.500, 95%CI: 1.327-1.695), and those with perceived risk of HIV infection (OR=5.875, 95%CI: 5.336-6.468) had greater HIV antibody testing demand. Conclusions The HIV testing demand among college students is associated with gender, school type, sexual orientation, sexual behaviors, HIV testing promotion, and perceived risk of HIV infection. It is recommended to strengthen HIV knowledge dissemination of AIDS knowledge and mobilization for HIV antibody testing in colleges to improve the accessibility of HIV antibody testing services.

Objective: To investigate the epidemiological characteristics of genital Chlamydia trachomatis infections in Shaoxing City from 2012 to 2021, so as to provide the evidence for improving the control strategy of genital C. trachomatis infections. Methods: Data pertaining of patients with genital C. trachomatis infections in Shaoxing City from 2012 to 2021 were retrieved from Chinese Disease Prevention and Control Information System, and the incidence of genital C. trachomatis infections was calculated. The trends in incidence of genital C. trachomatis infections were analyzed using annual percent change (APC), and temporal, human and temporal distributions of genital C. trachomatis infections were descriptively analyzed. Results: A total of 18 235 cases with genital C. trachomatis infection were reported in Shaoxing City from 2012 to 2021, and the annual average incidence was 36.36/105. The incidence of genital C. trachomatis infections appeared a tendency towards a rise in Shaoxing City from 2012 to 2021 (APC=4.51%, t=2.663, P=0.029). The reported incidence of genital C. trachomatis infections was significantly higher among females than among males (60.46/105 vs. 12.50/105; χ2=7 935.467, P<0.001), and 76.04% infections (13 866 cases) occurred at ages of 20 to <40 years, while a high incidence rate of genital C. trachomatis infections was seen among patients at ages of 25 to <30 years (154.23/105). In addition, high incidence rates were seen in Keqiao District (57.93/105) and Yuecheng District (51.78/105). Conclusions The incidence of genital C. trachomatis infections appeared a tendency towards a rise in Shaoxing City from 2012 to 2021, and the infection predominately occurred among women and young individuals.