Epidemiological Characteristics Of HIV Antibody Screening And 1386 Cases Of HIV-Infected In Urban Areas Of Agricultural-Pastoral Region In Northeastern China: A 20-Year Cross-Sectional Study

Objective: This study analyzed the epidemiological characteristics of HIV-Positive Person in Chifeng, Inner Mongolia, China, over a 20-year period. It includes the detection of transmission routes, time trends, transmission routes and population characteristics. This study provides a reference for the formulation of targeted prevention and control measures for AIDS in the future. Method: The data of HIV antibody test module and HIV-Infected individuals in Chifeng, Inner Mongolia, China from 2005 to 2024 were collected from 354 medical and health institutions to the Chinese Disease Prevention and Control Information System. Results: A total of 7,989,346 people were screened for HIV antibody in Chifeng, Inner Mongolia, and 1386 cases of HIV-Infected were detected, with a screening positivity rate of 17.35/100 000. Primary case detection methods included patient testing in medical institutions,preoperative testing and Sexually Transmitted Disease clinic (STD clinic) testing. Positivity rates varied significantly across detection methods. The number of HIV infections showed an annual increase. All districts in Chifeng were reported to have HIV infection, and the number of cases in J and K districts accounted for 56.42%. The infection rate varied among districts. Male accounted for 90.76% of the HIV-Infected individuals, and the infection rate was different between males and females. There were ethnic differences in the infection rates, mainly in Han and Mongolian. The infection rate was different among the age groups, with an average age of 36.58±12.63 years. The main route of transmission was sexual transmission, and the proportion of heterosexual transmission was on the rise in the past decade. Conclusion: The main ways of HIV diagnosis were patient testing in medical institutions, preoperative testing and STD clinic testing. Male cases were more than female cases, and the proportion of young and middle-aged cases was high. Sexual transmission was the main transmission route, and the number of Mongolian cases increased year by year.