MATERIAL METHOD
Ten centers in Turkey have been included in the study. The number of HIV-infected patients followed in these centers is 3172. In a study with a similar setup to our study, the prevalence of OHB was found to be 7.5% (7). In our study, the sample size was calculated as 255 people in a population of 3172 people at 7.5% prevalence, 5% error, 80% power, 95% confidence level. Among 3172 HIV-infected patients who were followed up until February 1, 2020 in the centers participating in the study, 279 patients who met the inclusion criteria were included in the study. Gender, age, occupation, place of residence, treatment status, clinic, immunodeficiency panel, eliza tests, hemogram, biochemistry and coagulation laboratory results of the patients were evaluated retrospectively.