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Cigarette smoking and risk of completed suicide: a meta-analysis of prospective cohort studies.

Cigarette smokers may have a high tendency of committing suicide.

​This study evaluated the connection between cigarette smoking and the likelihood of committing suicide. Researchers analyzed data drawn out from 15 studies involving more than 1 million participants and over 2,000 cases of completed suicide. 

The team of investigators observed that suicide rates were high among smokers compared to non-smokers. "Our meta-analysis robustly demonstrates that cigarette smoking is associated with an increased risk of completed suicide, consistent with a dose-response relationship," the authors concluded.

Research Summary Information

  • 2012
  • Li D, Yang X, Ge Z, Hao Y, Wang Q, Liu F, Gu D, Huang J.
  • State Key Laboratory of Cardiovascular Diseases, Department of Evidence Based Medicine, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Beijing 100037, China.
  • No, Free full text of study was not found.
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