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Impact of Changes in Regular Use of Marijuana and/or Tobacco On Chronic Bronchitis
COPD: Journal of Chronic Obstructive Pulmonary Disease, 08/17/2012
Tashkin DP et al. – The authors found that continuing smokers of either marijuana or tobacco had a significantly increased likelihood of having chronic bronchitis at follow–up compared to both never smokers and former smokers. On the other hand, former smokers of either substance were no more likely to have chronic respiratory symptoms at follow–up than never smokers. These findings demonstrate the benefit of marijuana smoking cessation in resolving pre–existing symptoms of chronic bronchitis.