Pulmonary Function in People Living With Human Immunodeficiency Virus: A Meta-Analysis

Background: HIV can infect bronchial epithelial cells rendering individuals susceptible to lung damage. Our objective was to determine the effects of human immunodeficiency virus (HIV) infection on pulmonary function tests. Methods: We performed a meta -analysis after conducting a literature search in PubMed, Embase, Cochrane Library and Virtual Health Library databases from inception to December 31st, 2022. We employed the inverse variance method with a random effects model to calculate the effect estimate as the mean difference (MD) and 95% confidence interval (CI). We calculated the heterogeneity with the I 2 statistic and performed a meta -regression analysis by age, sex, smoking, CD4 T -cells count and antiretroviral therapy. We also conducted a sensitivity analysis according to the studies' publication date, and excluding the study with the greatest weight in the effect. The PROSPERO registry number was CRD42023401105. Results: The meta -analysis included 20 studies, with 7621 living with HIV and 7410 control participants. The pooled MD (95%CI) for the predicted percentage of FEV (1) , FVC and DL CO were -3.12 (-5.17, -1.06); p = 0.003, -1.51 (-3.04, 0.02); p = 0.05, and -5.26 (-6.64, -3.87); p < 0.001, respectively. The pooled MD for FEV (1) /FVC was -0.01 (-0.02, -0.01); p = 0.002. In all cases, there was a considerable heterogeneity. The meta -regression analysis showed that among studies heterogeneity was not explained by patient age, smoking, CD4 T -cells count or antiretroviral therapy. Conclusion: Pulmonary function tests are impaired in people living with HIV, independently of age, smoking, CD4 T -cells count, and geographical region. (c) 2024 SEPAR. Published by Elsevier Espan a, S.L.U. All rights reserved.