Authors
Jingyi Huang, Da Huang, Xiaohao Ruan, Jinlun Huang, Danfeng Xu, Susan Heavey, Jonathan Olivier, Rong Na
Published
August 17, 2022
Abstract
Background
Legislation of cannabis use has been approved in many European and North American countries. Its impact on urological cancers is unclear. This study was conducted to explore the association between cannabis use and the risk of urological cancers.
Methods
We identified 151,945 individuals with information on cannabis use in the UK Biobank from 2006 to 2010. Crude and age-standardized incidence ratios of different urological cancers were evaluated in the entire cohort and subgroups. Cox regression was performed for survival analysis.
Results
Previous use of cannabis was a significant protective factor for renal cell carcinoma (HR = 0.61, 95%CI:0.40–0.93, p = 0.021) and prostate cancer (HR = 0.82, 95%CI:0.73–0.93, p = 0.002) in multivariable analysis. The association between previous cannabis use and both renal cell carcinoma and bladder cancer was only observed in females (HRRCC = 0.42, 95%CI:0.19–0.94, p = 0.034; HRBCa = 0.43, 95%CI:0.21–0.86, p = 0.018) but not in men. There was no significant association between cannabis use and testicular cancer incidence. Mendelian randomization demonstrated a potential causal effect of cannabis use on a lower incidence of renal cell carcinoma.
Conclusions
Previous use of cannabis was associated with a lower risk of bladder cancer, renal cell carcinoma, and prostate cancer. The inverse association between cannabis and both renal cell carcinoma and bladder cancer was only found in females but not in males.
DOI: 10.1016/j.neubiorev.2022.104635
Citations
Huang, J., Huang, D., Ruan, X., Huang, J., Xu, D., Heavey, S., … & Na, R. (2022). Association between cannabis use with urological cancers: A population‐based cohort study and a mendelian randomization study in the UK biobank. Cancer Medicine.