HealthDay News — Elderly patients with type 2 diabetes who experience increased daytime sleepiness may be at increased risk for hypoglycemia, according to a study published online in Diabetes Care.

Berit Inkster, MBChB, from the Royal Infirmary of Edinburgh in the United Kingdom, and colleagues recruited 898 people with type 2 diabetes to complete questionnaires regarding sleep-disordered breathing, daytime sleepiness, and occurrence of severe hypoglycemia.

Respondents who scored highly on the Epworth Sleepiness Scale were significantly more likely to have severe hypoglycemia, the researchers found.

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Even when adjusting for the variables of age, sex, duration of diabetes, HbA1c, BMI and treatment type, having a high Epworth Sleepiness Scale score was a significant predictor of severe hypoglycemia.

“Daytime sleepiness may be a novel risk factor for hypoglycemia,” the researchers wrote.


  1. Inkster B et al. Diabetes Care. 2013; doi: 10.2337/dc13-0863.