Context

Obesity is the most important risk factor for obstructive sleep apnoea (OSA). The lack of well-designed studies on the effects of weight reduction on OSA has led to conclusions that although weight loss may reduce the severity of OSA, the beneficial effects may not be sustained and it is not curative. However, recent reports in patients with mild OSA and in OSA patients with type 2 diabetes raise questions about these conclusions.1 2 We also need well-controlled trials on the effects of weight reduction programs among patients with more severe OSA. The aim of the study was to determine whether initial improvements in OSA after a …