It is biologically plausible that marijuana (cannabis) use could affect kidney function, and this cohort study set out to determine any relationships. Data from the Coronary Artery Risk Development in Young Adults (CARDIA) study was used.
Past or current marijuana use was reported by 83% (3,131 out of 3,765) of the study participants. The authors found no longitudinal association between marijuana use and the kidney functions they evaluated. One of the samples was evaluated over a 15 year period.