Association Between Marijuana Exposure And Pulmonary Function Over 20 Years
| Effect | Increase |
| Trial Design | Cohort |
| Trial Length | 6+ Months |
| Number of Subjects | 5115 |
| Sex | Both Genders |
| Age Range | 18-29, 30-44 |
A 20-year follow-up on cannabis smokers found that, after adjusting for confounders, FEV1 and FVC both increased slightly in in light chronic users, but at higher long-term dosages, both decreased, with FEV1 returning to baseline but FVC remaining above baseline.
