Abstract
Background: Behavioral risk factors, in addition to increasing the risk of HIV/AIDS transmission, can affect the antiretroviral therapy (ART) pattern of people with the condition. The aim of this study was to determine the prevalence of behavioral risk factors and its effect on adherence to antiretroviral drugs (ARV) treatment in patients with HIV/AIDS in western Iran.Methods: This study was performed on all patients who were diagnosed with HIV/AIDS in Kermanshah province during the years 1995-2019 (25 years). Adherence to treatment in these patients was divided into three categories according to the WHO definition: Non-adherence, cessation and adherence to treatment. Using single-variable and multi-variable logistic regression, the effect of important variables in four models was modified and the effect of each of the behavioral risk factors was studied in patients who had non-adherence or experienced cessation compared to those who adhered to ARV.Results: Of the 2,867 patients with HIV/AIDS, 2,449 (85.42%) were men. The mean age of HIV infection was 33.36 ± 11.8 years. In 1995, less than 10 percent of people received treatment, which is 2019 it reached to more than 67 percent. All behavioral risk factors increased the non-adherence to medication and cessation of ARV. In general, after controlling confounding variables except needle sharing, all behavioral variables affected ARV treatment; The greatest impact on non-adherence to medication was History of drug abuse, History of the prison, History of injection drug use and Sex with non-spouse with a chance of 10.87 (7.21-16.39), 3.94 (2.84-5.46), 3.86 (2.47-6.03) and 3.38(2.19-5.23) times more than patients without these risk factors, respectively.Conclusion: Although the process of receiving treatment has been increasing since 2005, the non-adherence to medication is still high in high-risk groups, so it is important to focus more on reducing non-adherence and eventually cessation of treatment. In particular, more focus is necessary for health education and raising the level of awareness of these groups.