Introduction/objectives: Different ART (antiretroviral therapy) options may affect the risk of osteopenia/osteoporosis in people living with HIV (PLWH) having increased life expectancy. Current guidelines recommend bone mineral density (BMD) measurement only in patients at risk. In our study, we investigated the prevalence of osteopenia/osteoporosis and associated risk factors in naive patients not receiving ART.
Methods: This study included 116 newly diagnosed, ART naive HIV-positive patients who were studied retrospectively. Vitamin D level, BMD measurement, CD4 and CD8 count, CD4/CD8 ratio, HIV RNA level, body mass index and other risk parameters of ART naive patients were included in our study.
Results: Of 116 patients, 103 were male and 13 female. 47.4% (osteoporosis in 4.3%, osteopenia in 43.1%) of patients had osteopenia/osteoporosis. The patients with osteopenia/osteoporosis had older age (39.2±11.0 vs. 32.0±8.6, p=0.0001), lower vitamin D levels (16.0±5.0 vs. 24.4±6.3, p=0.0001), lower BMI (body mass index) (23.0±4.0 vs. 24.6±4.6 p<0.05), lower CD4 and CD8 counts (405.1±885.0 vs. 467.3± 695.1; 849.9570.4 vs. 1012.0±629.4, respectively, p<0.05). 41.8% had CD4 count ≤200/μL (vs. 18.0%, p=0.005). No statistically significant differences were observed in terms of gender distribution, smoking, alcohol and drug use, comorbidities and, additional drug use and HIV RNA >100 000 copies/ml. In multivariate analysis, age and vitamin D level were significant and independent (p<0.05) risk factors with osteoporosis/osteopenia.
Conclusion: Being over 40 years of age, CD4 count ≤200/μL, vitamin D level <20 ng/mL and low BMI are the most important risk factors for osteopenia/osteoporosis in ART naive patients. Among these parameters, age and vitamin D level were significant and independent risk factors. These factors may guide the determination of the need for dual-energy x-ray absorptiometry (DXA) testing in ART naive patients and drug choices in the treatment plan.
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