Home > Association between marijuana use and risk of cancer: a systematic review and meta-analysis.

Ghasemiesfe, Mehrnaz and Barrow, Brooke and Leonard, Samuel [JAMA] . (2019) Association between marijuana use and risk of cancer: a systematic review and meta-analysis. JAMA Network Open, 2 (11: e1916318) 10.1001/jamanetworkopen.2019.16318

URL: https://jamanetwork.com/journals/jamanetworkopen/f...

Question: What is the association between marijuana use and cancer development in adults with at least 1 joint-year exposure (equivalent to 1 joint per day for 1 year)?

Findings: This systematic review and meta-analysis identified 25 English-language studies assessing marijuana use and the risk for developing lung, head and neck, urogenital, and other cancers. In meta-analyses, regular marijuana use was associated with development of testicular germ cell tumors, although the strength of evidence was low; evidence regarding other cancers was insufficient.

Meaning: Sustained marijuana use may increase the risk for testicular cancer, but overall, the association of marijuana use and cancer development remains unclear.


Item Type:Evidence resource
Publication Type:Review
Drug Type:Cannabis
Intervention Type:AOD disorder, AOD disorder harm reduction
Source:JAMA
Date:November 2019
Volume:2
Number:11: e1916318
EndNote:View
Subjects:A Substance use, abuse, and dependence > Effects and consequences
B Substances > Cannabis / Marijuana
G Health and disease > State of health
G Health and disease > Pathologic process > Cancer

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