• Gary D Foster, Mark H Sanders, Richard Millman, Gary Zammit, Kelley E Borradaile, Anne B Newman, Thomas A Wadden, David Kelley, Rena R Wing, F Xavier Pi Sunyer, Valerie Darcey, Samuel T Kuna, and Sleep AHEAD Research Group.
• Temple University, Philadelphia, Pennsylvania, USA. gfoster@temple.edu
• Diabetes Care. 2009 Jun 1;32(6):1017-9.

ObjectiveTo assess the risk factors for the presence and severity of obstructive sleep apnea (OSA) among obese patients with type 2 diabetes.Research Design And MethodsUnattended polysomnography was performed in 306 participants.ResultsOver 86% of participants had OSA with an apnea-hypopnea index (AHI) >or=5 events/h. The mean AHI was 20.5 +/- 16.8 events/h. A total of 30.5% of the participants had moderate OSA (15 or=30). Waist circumference (odds ratio 1.1; 95% CI 1.0-1.1; P = 0.03) was significantly related to the presence of OSA. Severe OSA was most likely in individuals with a higher BMI (odds ratio 1.1; 95% CI 1.0-1.2; P = 0.03).ConclusionsPhysicians should be particularly cognizant of the likelihood of OSA in obese patients with type 2 diabetes, especially among individuals with higher waist circumference and BMI.

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