Category: cancer

Study: Marijuana Smoking Does Not Promote Head and Neck Cancer

Marijuana smoke exposure is not positively associated with the development of cancers of the head or neck, according to the results of a systematic literature review published online ahead of print in the journal Archives of Oral Biology. “The result of this study indicated no association between lifetime marijuana use and the risk for development of head and neck cancer,” authors concluded.

Study: History Of Cannabis Use Associated With Reduced Cancer Risk

Cannabis use is inversely associated with incidences of bladder cancer in males, according epidemiological findings published in the February issue of the journal Urology. “After adjusting for age, race or ethnicity, and body mass index, using tobacco only was associated with an increased risk of bladder cancer (hazard regression 1.52) whereas cannabis use was only associated with a 45 percent reduction in bladder cancer incidence (HR 0.55),” investigators reported.

Study: Habitual Marijuana Smoking Not Associated With Increased Risk Of Lung Cancer

Subjects who regularly inhale cannabis smoke possess no greater risk of contracting lung cancer than do those who consume it occasionally or not at all, according to data published online ahead of print in the International Journal of Cancer. An international team of investigators from Canada, New Zealand, the United Kingdom, and the United States analyzed data from six case-control studies involving over 5,000 subjects (2,159 cases and 2,985 controls) from around the world. Authors concluded, “Results from our pooled analyses provide little evidence for an increased risk of lung cancer among habitual or long-term cannabis smokers.”