Table 2.
Fixed Effects** | Odds Ratio | 95% CI |
---|---|---|
Cigarette smoking status | ||
Non-smoker | 1.00 | |
Non-daily | 1.24 | 1.14–1.35 |
Daily | 1.81 | 1.61–2.04 |
Cigar smoking status | ||
Non-smoker | 1.00 | - |
Non-daily | 1.11 | 1.03–1.21 |
Daily | 7.77 | 5.49–11.02 |
Smokeless tobacco use | ||
Never | 1.00 | - |
Non-daily | 1.00 | 0.92–1.09 |
Daily | 1.18 | 0.91–1.53 |
Marijuana use | ||
Never | 1.00 | - |
Non-daily | 1.12 | 1.03–1.21 |
Daily | 1.57 | 1.37–1.81 |
Cocaine use | ||
Never | 1.00 | - |
Non-daily | 1.03 | 0.93–1.13 |
Daily | 18.49 | 8.24–41.50 |
Alcohol use | ||
Never | 1.00 | - |
Non-daily | 0.71 | 0.59–0.85 |
Daily | 1.84 | 1.39–2.43 |
Age, in years | ||
18–20 | 1.00 | - |
21–24 | 0.79 | 0.73–0.86 |
25 + | 0.74 | 0.60–0.90 |
Gender | ||
Female | 1.00 | - |
Male | 1.21 | 1.13–1.30 |
Race | ||
White | 1.00 | - |
African American | 1.26 | 1.00–1.58 |
Hispanic/Latino | 0.96 | 0.84–1.09 |
Asian/Pacific Islander | 1.18 | 1.05–1.33 |
Other | 1.19 | 1.06–1.34 |
Sexual orientation | ||
Heterosexual | 1.00 | - |
Lesbian, gay, bisexual, or transgender | 0.98 | 0.87–1.11 |
Marital status | ||
Not married | 1.00 | - |
Married/partnered | 1.36 | 1.11–1.66 |
Education | ||
Undergraduate | 1.00 | - |
Graduate/professional/other | 0.68 | 0.56–0.84 |
Residence | ||
Off-Campus Housing | 1.00 | - |
On-Campus Housing | 0.84 | 0.78–0.91 |
Fraternity/sorority | ||
Non-member | 1.00 | - |
Member | 1.17 | 1.07–1.28 |
Geographic region | ||
Northeast | 1.00 | - |
Midwest | 0.96 | 0.84–1.10 |
South | 1.05 | 0.92–1.18 |
West | 1.19 | 1.06–1.35 |
Waterpipe smoking frequency categories: 1= 1–2 days; 2= 3–5 days; 3= 6–9 days; 4= 10–19 days; 5= 20–29 days; 6= daily
Random effect: College ID; variance = 0.06; 95% CI = 0.04 – 0.09