Table 4:

Persistent use of premium or discount, or contraband tobacco as a predictor of cessation outcomes during the 6-month follow-up period

Outcome; type of cigaretteRespondents, %*RR (95% CI)
UnadjustedAdjusted
Attempt to quit
 Premium/discount27.01.00 (ref)1.00 (ref)
 Contraband14.40.53 (0.37–0.74)1.00 (0.51–1.70)
30-day cessation
 Premium/discount8.41.00 (ref)1.00 (ref)
 Contraband3.20.38 (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.