Key result
Weight loss in OSA linked to ~57% AHI reduction following substantial BMI decrease.
Why the study?
While the relationship between weight reduction and apnea-hypopnea index improvement is documented, it had not been adequately quantified.
Does weight reduction improve the apnea-hypopnea index in people with obesity/overweight and obstructive sleep apnea?
Meta-Analysis
Does weight reduction improve the apnea-hypopnea index in people with obesity/overweight and obstructive sleep apnea?
p-value: p=<0.05
Weight reduction significantly improves obstructive sleep apnea severity, with a 20% BMI reduction yielding a 57% decrease in the apnea-hypopnea index.
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Reinforces weight loss as first-line OSA therapy in obesity; extends dose-response evidence on BMI-AHI correlation.
Malhotra et al. (2024) conducted a meta-analysis in Obstructive sleep apnea (OSA) and obesity/overweight. Weight reduction was evaluated on Percent change from baseline AHI against mean percent change from baseline weight (p=<0.05). Weight reduction in patients with OSA and obesity was associated with AHI improvement, where a 20% BMI reduction correlated with a 57% AHI reduction.
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