A. Adjusted odds ratios of no marijuana use more than once per month over time by young and older adults and marital status, matched sample
B. Adjusted odds ratios of no marijuana use more than once per month over time by young and older adults with and without substance us treatment services when needed, matched sample
C. Adjusted odds ratios of no marijuana use more than once per month over time by young and older adults with and without 12-step meeting attendance, matched sample