Adjusted odds ratios (AORs) from logistic regressions predicting current (past 30-day) cigarette, waterpipe, and electronic cigarette (ECIG) use. Filled symbols indicate significant AORs (p < .05). All analyses were adjusted for age, gender, race, and ethnicity. The reference group for each analysis was non-members or non-participants (e.g., fraternity or sorority members vs. non-fraternity or sorority members, varsity athletes vs. non-varsity sports athletes; club sports athletes vs. non–club sports athletes, intramural sports athletes vs. non-intramural sports athletes).