Wave (survey year) | Implementation timing | Premium brand cigarettes (PBC) | Mid-priced brand cigarettes (MBC) | Discount brand cigarettes (DBC) | |||
% | (95% CI) | % | (95% CI) | % | (95% CI) | ||
Wave 1 (2006) | Pre-implementation | 4.7 | (3.4 to 6.3) | 38.3 | (34.0 to 42.9) | 57.0 | (52.2 to 61.7) |
Wave 2 (2007–2008) | Pre-implementation | 6.1 | (4.5 to 8.2) | 41.8 | (37.6 to 46.1) | 52.1 | (47.8 to 56.3) |
Wave 3 (2009) | Mid-implementation | 8.8 | (7.2 to 10.6) | 44.0 | (40.0 to 48.1) | 47.2 | (42.6 to 51.9) |
Wave 4 (2011–2012) | Post-implementation | 19.5 | (16.6 to 22.7) | 52.4 | (47.3 to 57.4) | 28.2 | (22.5 to 34.6) |
Wave 5 (2013–2015) | Post-implementation | 32.1 | (28.7 to 35.8) | 48.1 | (43.2 to 53.0) | 19.8 | (14.7 to 26.1) |
The prevalence estimates controlled for sex, age, time in sample, city, affordability and smoking status.
Data are weighted and standardised.