TABLE 3.
Cigarette Brand Impressions as Predictor of Smoking Initiation After 12 and 30 Months
| Baseline Characteristics | Smoking at 12 mo (n = 1182), OR (95% CI) | Smoking at 30 mo (n = 895), OR (95% CI) |
|---|---|---|
| Constant | 0.03 (0.01–0.07) | 0.03 (0.01–0.09) |
| Grade level | ||
| 6 | 1.00 | 1.00 |
| 7 | 0.88 (0.58–1.32) | 1.39 (0.94–2.07) |
| 8 | 1.52 (1.04–2.22) | 1.26 (0.85–1.86) |
| Male gender | 0.94 (0.68–1.30) | 0.87 (0.62–1.20) |
| Ethnicity (Hispanic vs all others) | 1.56 (1.12–2.17) | 1.38 (0.99–1.93) |
| Racial minority (any vs all others) | 1.01 (0.73–1.39) | 0.88 (0.63–1.22) |
| Self-reported grades (mostly Bs or below) | 1.55 (1.13–2.14) | 1.61 (1.15–2.25) |
| Unsupervised after school (>2 d/wk) | 1.31 (0.95–1.82) | 0.82 (0.59–1.13) |
| Risk-taking propensity (1–4) | 1.50 (1.25–1.80) | 1.40 (1.16–1.70) |
| At least 1 parent/household smoker | 1.61 (1.17–2.21) | 1.27 (0.91–1.76) |
| At least 1 friend smokes | 1.61 (1.02–2.54) | 1.88 (1.15–3.06) |
| Perceived exposure | ||
| See smoking in movies/television (4 = often) | 1.08 (0.90–1.30) | 1.26 (1.05–1.51) |
| See cigarette ads in stores (4 = often) | 0.90 (0.73–1.10) | 1.10 (0.89–1.36) |
| Cigarette brand impressions per week | ||
| Low (<60) | 1.00 | 1.00 |
| Moderate (60–259) | 1.22 (0.79–1.89) | 1.20 (0.81–1.79) |
| High (≥260) | 2.36 (1.55–3.61) | 1.58 (1.05–2.37) |
Odds ratios (ORs) are adjusted for all other variables in the table. CI indicates confidence interval.