Prevalence and Risk Factors of Cytopenia in HIV-Infected Patients before and after the Initiation of HAART

Background. Cytopenia is a frequent hematological disorder in patients with human immunodeficiency virus (HIV) infection. However, the distribution and risk factors of cytopenia in patients starting highly active anti-retrovirus treatment (HAART) and the effect of HAART on cytopenia were not fully investigated. Methods. From November 2004 to August 2016, a retrospective study was conducted to evaluate the prevalence of cytopenia in 4325 HAART-naive patients. Risk factors of cytopenia at baseline and on recovery from cytopenia were analyzed using logistic regression analysis after 24 months of HAART in Beijing Ditan Hospital. Results. The prevalence of cytopenia was 19.1% in HIV-naive patients. Risk factors for cytopenia in HAART-naive patients were a CD4 cell count<200 cells/μL, femaleness, WHO stage IV, coinfection with hepatitis B virus (HBV), BMI <18.5 kg/m2, a viral load ≥100,000 copies/ml, and age ≥40 years. In total, 70.2% and 76.4% of patients with cytopenia recovered after 6 and 24 months of HAART, respectively. The predictors of patients without normal blood cells after 24 months HAART were a CD4 cell count of <200 cells/μL at baseline, femaleness, WHO stage IV, coinfection with HBV, and treatment with AZT. Conclusion. Early detection could decrease the prevalence of HIV-related cytopenia, while starting HAART as early as possible seems to be effective for normalization of the blood cells in HIV-infected patients.