EPIDEMIOLOGY OF HIV INFECTION IN THE AMUR REGION

Abstract

The HIV infection prevalence rate suggests that in the Russian Federation the number of new cases of infection continues to grow. The retrospective epidemiological analysis of HIV infection in the Amur region was performed during a 5-year period from 2013 to 2017. The study included evaluation of incidence and prevalence rates, morbidity and mortality patterns. A positive HIV status has 0,14% of the region population. In 2017, the HIV-incidence rate equaled to 10,97‰₀₀. Similar incidence rates were registered during 2015 and 2016. During 2013–2017 annual growth of HIV-prevalence that reached its peak in 2017 and exceeded the previous year’s rate at 18,3±0,65% (p=0,001) was registered. The highest HIV prevalence was detected at age from 30 to 39 years (45%). Among the HIV-positive people, sexual transmission route was dominant and during 2017 and totaled to 87%. Among people living with HIV registered for outpatient treatment, the most frequent stages of the disease (representing 97,7% of all clinical forms) were subclinical stage diagnosed in 251,3‰ [95% CI 232,2–270,3] and second stage (of secondary manifestations) totaled to 216,1‰ [95% CI 191,5–240,5]. This indicates on the development of the concentrated stage of HIV infection in the Amur region. Epidemiologic features of infection spread in the Amur region derives not only from active cross-border movements of citizens, but also from the specifics of demography processes.