Table 1.
Demographic and clinical measures and statistics of ANOVA/t-test.
| Smokers |
Never smokers |
F values |
|||||
|---|---|---|---|---|---|---|---|
| Men (n = 36) | Women (n = 28) | Men (n = 124) | Women (n = 74) | G × S | G main | S main | |
| Age | 29.7 ± 2.8 | 30.4 ± 3.1 | ± 3.5 | 31.0 ± 2.5 | 3.79 | 0.52 | 12.6 |
| PC1 | 1.0 ± 0.9 | −0.03 ± 0.9 | 0.003 ± 1.0 | −0.5 ± 0.7 | 4.72 | 34.3 | 36.9 |
| FTND | 4.6 ± 0.8 | 5.1 ± 0.9 | / | / | / | / | a2.18 |
| Illic | 2.1 ± 1.9 | 1.5 ± 1.6 | 0.3 ± 0.8 | 0.2 ± 0.7 | 1.03 | 51.3 | 0.01 |
| Marij | 3.8 ± 1.5 | 2.5 ± 1.8 | 0.9 ± 1.3 | 0.8 ± 1.3 | 5.66 | 80.7 | 1.46 |
| PSQI | 5.0 ± 2.9 | 6.2 ± 4.3 | 4.2 ± 2.6 | 4.6 ± 2.9 | 1.50 | 4.01 | 3.64 |
| Depr | 5.5 ± 4.0 | 4.7 ± 4.6 | 3.5 ± 3.4 | 3.7 ± 3.6 | 0.87 | 7.75 | 0.86 |
| Anxi | 5.0 ± 3.2 | 4.7 ± 3.2 | 3.1 ± 2.4 | 3.6 ± 3.0 | 0.71 | 12.6 | 0.002 |
Note: Values are mean ± SD. F values reflect the interaction and main effects of between-subject ANOVA.
a
Independent-sample t value is presented for FTND in smokers only. G: group; S: sex; PC1: first principal component of drinking metrics; FTND: Fagerström Test for Nicotine Dependence; Illic: times of non-marijuana illicit drug use, including cocaine, hallucinogens, opiates, sedatives, or other; Marij: times of marijuana use; PSQI: Pittsburgh Sleep Quality Index; Depr: Depressive Problems; Anxi: Anxiety Problems. Bold F values represent significant effects at p < 0.05/28 = 0.0018 (correction for multiple comparisons).