Changes in body mass index and clinical outcomes after initiation of contemporary antiretroviral regimens

Weight gain is becoming increasingly prevalent amongst people with HIV (PWH) receiving contemporary antiretroviral treatment. We investigated BMI changes and clinical impact in a large prospective observational study. PWH aged ≥18 years were included who started a new antiretroviral (baseline) durin...

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Published in:AIDS (London) Vol. 36; no. 15; p. 2107
Main Authors: Bannister, Wendy P, Mast, T Christopher, de Wit, Stéphane, Gerstoft, Jan, Wiese, Lothar, Milinkovic, Ana, Hadziosmanovic, Vesna, Clarke, Amanda, Rasmussen, Line D, Lacombe, Karine, Schommers, Philipp, Staub, Thérèse, Zagalo, Alexandra, Portu, Joseba J, Tau, Luba, Calmy, Alexandra, Cavassini, Matthias, Gisinger, Martin, Borodulina, Elena, Mocroft, Amanda, Reekie, Joanne, Peters, Lars
Format: Journal Article
Language:English
Published: England 01.12.2022
Subjects:
Adolescent
Adult
Anti-Retroviral Agents - therapeutic use
Body Mass Index
Cardiovascular Diseases - complications
Diabetes Mellitus - epidemiology
Female
HIV Infections - complications
HIV Infections - drug therapy
Humans
Male
Middle Aged
Neoplasms - complications
Neoplasms - drug therapy
Neoplasms - epidemiology
Obesity - drug therapy
Overweight - complications
Overweight - drug therapy
Overweight - epidemiology
Risk Factors
ISSN:1473-5571, 1473-5571
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Summary:Weight gain is becoming increasingly prevalent amongst people with HIV (PWH) receiving contemporary antiretroviral treatment. We investigated BMI changes and clinical impact in a large prospective observational study. PWH aged ≥18 years were included who started a new antiretroviral (baseline) during 2010-2019 with baseline and ≥1 follow-up BMI assessment available. Rates of clinical outcomes (cardiovascular disease [CVD], malignancies, diabetes mellitus [DM] and all-cause mortality) were analysed using Poisson regression to assess effect of time-updated BMI changes (>1 kg/m 2 decrease, ±1 kg/m 2 stable, >1 kg/m 2 increase), lagged by 1-year to reduce reverse causality. Analyses were adjusted for baseline BMI plus key confounders including antiretroviral exposure. 6721 PWH were included; 72.3% were male, median age 48 years (interquartile range [IQR] 40-55). At baseline, 8.4% were antiretroviral-naive, and 5.0% were underweight, 59.7% healthy weight, 27.5% overweight, and 7.8% were living with obesity. There was an 8.2% increase in proportion of overweight and 4.8% in obesity over the study period (median follow-up 4.4 years [IQR 2.6-6.7]).100 CVDs, 149 malignancies, 144 DMs, and 257 deaths were observed with incidence rates 4.4, 6.8, 6.6, 10.6 per 1000 person-years of follow-up, respectively. Compared to stable BMI, >1 kg/m 2 increase was associated with increased risk of DM (adjusted incidence rate ratio [IRR]: 1.96, 95% confidence interval [CI]: 1.36-2.80) and >1 kg/m 2 decrease with increased risk of death (adjusted IRR: 2.33, 95% CI: 1.73-3.13). No significant associations were observed between BMI changes and CVD or malignancies. A BMI increase was associated with DM and a decrease associated with death.
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ISSN:1473-5571
1473-5571
DOI:10.1097/QAD.0000000000003332