Smoking Increases Risk of Type 2 Diabetes

Filed in archive Lifestyle , Notable , Research on December 12, 2007

Now, not only is smoking associated with various cancers, but also associated to increased risk of diabetes.




Such were the conclusion of a review of previous studies reported in an article in the December 12 issue of JAMA.

A number of studies have examined the association between smoking and incidence of glucose abnormalities, and have suggested that smoking could be independently associated with glucose intolerance, impaired fasting glucose and type 2 diabetes, which could make smoking a modifiable risk factor for type 2 diabetes. However, it appears the quality and clinical features of these studies have not been fully assessed regarding this possible association.

The said systematic review - which indicated that people who currently smoke have an increased risk of developing type 2 diabetes, compared with non-smokers - was conducted by Carole Willi, M.D., of the University of Lausanne, Switzerland, and colleagues.

"...a systematic review and meta-analysis of studies describing the association between active smoking and the incidence of diabetes or other glucose metabolism irregularities. A search of databases yielded 25 studies, which were published between 1992 and 2006.

The number of participants per study ranged from 630 to 709,827, for a total of 1.2 million participants. A total of 45,844 new cases of diabetes were reported during a study follow-up period ranging from 5 to 30 years.
Analysis of the data indicated that active smokers have a 44 percent increased risk of developing type 2 diabetes compared with non-smokers.

Further analyses suggested a dose-response relationship between smoking and diabetes, with the association stronger for heavy smokers (20 or more cigarettes/day; 61 percent increased risk) compared with lighter smokers (29 percent increased risk). The association also was weaker for former smokers (23 percent increased risk) than it was for active smokers."

Well, I think nobody will be able to come up with the medical benefit of smoking.

So, if you area at higher risk of developing type 2 diabetes, please stop smoking now.

Find more details from the JAMA and Archives Journal.