From the Annals of Internal Medicine:
Cigarette smoking is a well-established risk factor for developing type 2 diabetes. Therefore, quitting smoking should reduce the risk.
However, smoking cessation can be associated with weight gain, and being overweight is a significant risk factor for type 2 diabetes.
To test the hypothesis that smoking cessation increases short term diabetes risk, researchers conducted a prospective cohort study of 10,892 middle-aged adults who did not have diabetes. In 9 years of follow-up, patients who smoked had a higher risk for diabetes than those who never smoked. Smokers who recently quit had higher short-term risk for diabetes than ex-smokers and continuing smokers for about 3 years. This excess risk disappeared by 12 years.
Researchers conclude that smokers who quit should receive advice about avoiding weight gain and about diabetes prevention and early detection.
Smoking, Smoking Cessation, and Risk for Type 2 Diabetes Mellitus: A Cohort Study. Annals of Internal Medicine, 5 January 2010 Issue.
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