Sleepy and Low

Association Between Excessive Daytime Sleepiness and Severe Hypoglycemia in People With Type 2 Diabetes, Diabetes Care, published online Oct. 2, 2013

What is the problem and what is known about it so far?

People with type 2 diabetes who take certain medications, such as insulin and sulfonylureas, are at risk for developing low blood glucose (hypoglycemia). A variety of factors, such as age and kidney function, can affect the risk for developing severe hypoglycemia, which is a low blood glucose level that requires help from another person to treat.

Why did the researchers do this particular study?

The researchers wanted to determine whether daytime sleepiness is a risk factor for developing severe hypoglycemia.

Who was studied?

The study included 898 people with type 2 diabetes.

How was the study done?

The participants completed questionnaires about sleep disorders, daytime sleepiness, and episodes of severe hypoglycemia. The researchers then analyzed the responses.

What did the researchers find?

Participants who reported daytime sleepiness were at an increased risk for severe hypoglycemia.

What were the limitations of the study?

The design of the study did not allow the researchers to determine if sleepiness caused severe hypoglycemia. The researchers also could not account for some factors that could have skewed their results such as stress or social class.

What are the implications of the study?

Efforts to identify and treat excessive sleepiness may be able to prevent episodes of severe hypoglycemia in people with type 2 diabetes.

  • Last Reviewed: February 13, 2014
  • Last Edited: March 31, 2014

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