Outcome; type of cigarette | Respondents, %*† | RR (95% CI) | |
---|---|---|---|
Unadjusted | Adjusted‡ | ||
Attempt to quit | |||
Premium/discount | 27.0 | 1.00 (ref) | 1.00 (ref) |
Contraband | 14.4 | 0.53 (0.37–0.74) | 1.00 (0.51–1.70) |
30-day cessation | |||
Premium/discount | 8.4 | 1.00 (ref) | 1.00 (ref) |
Contraband | 3.2 | 0.38 (0.20–0.72) | 0.55 (0.21–1.37) |
Note: CI = confidence interval, ref = reference category, RR = relative risk.
↵* Sample sizes for unadjusted analyses were 2282 overall, 1991 for premium/discount brands and 291 for contraband cigarettes; sample sizes for adjusted analyses were 1910, 1682 and 228, respectively.
↵† Population-weighted estimates.
↵‡ Adjusted for all covariates listed in Table 1.