Table 2:
Association between type of cigarette smoked at baseline and cessation outcomes at 6 months and 1 year
| Cessation outcomes at 6 mo and 1 yr; type of cigarette | Respondents, %*† | RR (95% CI) | |
|---|---|---|---|
| Unadjusted | Adjusted‡ | ||
| Attempt to quit | |||
| At 6 mo | |||
| Premium/discount | 30.1 | 1.00 (ref) | 1.00 (ref) |
| Contraband | 18.9 | 0.63 (0.45–0.85) | 0.74 (0.43–1.20) |
| At 1 yr | |||
| Premium/discount | 43.3 | 1.00 (ref) | 1.00 (ref) |
| Contraband | 27.1 | 0.63 (0.49–0.79) | 0.93 (0.63–1.26) |
| 30-day cessation | |||
| At 6 mo | |||
| Premium/discount | 10.7 | 1.00 (ref) | 1.00 (ref) |
| Contraband | 4.3 | 0.40 (0.18–0.86) | 0.23 (0.09–0.61) |
| At 1 yr | |||
| Premium/discount | 17.9 | 1.00 (ref) | 1.00 (ref) |
| Contraband | 8.0 | 0.45 (0.27–0.72) | 0.30 (0.14–0.61) |
| Long-term cessation | |||
| Premium/discount | 4.0 | 1.00 (ref) | 1.00 (ref) |
| Contraband | 1.6 | 0.39 (0.15–1.00) | 0.24 (0.04–1.34) |
Note: CI = confidence interval, ref = reference category, RR = relative risk.
*
Sample sizes for unadjusted analyses were 2786 overall, 2421 for premium/discount brands, and 365 for contraband cigarettes; sample sizes for adjusted analyses were 2310, 2029 and 281, respectively.
†
Population-weighted estimates.
‡
Adjusted for all covariates listed in Table 1.