Results of interrupted time series analyses investigating the impact of new tobacco packaging on smokers’ responses to graphic health warnings and pack attitudes
| Increase in % strongly agree (95% CI) | p Value | |
|---|---|---|
| Responses to graphic health warnings | ||
| Cognitive* | 9.8 (3.0 to 16.5) | 0.005 |
| Emotional* | 8.6 (1.7 to 15.4) | 0.010 |
| Avoidant† | 9.8 (4.2 to 15.3) | <0.001 |
| Warning salience‡ | 2.5 (−10.1 to 15.1) | 0.700 |
| GHW impact‡ | 0.38 (0.05 to 0.70)§ | 0.02 |
| Increase in % strongly disagree (95% CI) | ||
| Pack perceptions | ||
| Attractive‡ | 57.5 (38.0 to 77.1) | <0.001 |
| Says something good about me‡ | 54.5 (36.9 to 72.1) | <0.001 |
| Influences the brand I buy‡ | 40.6 (23.2 to 58.0) | <0.001 |
| Makes my brand stand out‡ | 55.6 (35.0 to 76.2) | <0.001 |
| Is fashionable‡ | 44.7 (28.1 to 61.2) | <0.001 |
| Matches my style‡ | 48.1 (32.2 to 64.0) | <0.001 |
| Negative Pack Perceptions‡ | 0.21 (0.02 to 0.40)§ | 0.03 |
All models adjusted for TARPs, cigarette costliness and seasonal variations (where possible); full results available from authors on request; all effects occurred at 3 months lag, except for ‘avoidant’ responses to the graphic health warnings and GHW Impact (2-month lag).
*Data available April 2006–May 2013.
†Data available April 2007–May 2013.
‡Data available October 2011–May 2013.
§Increase in Mean score.
GHW, graphic health warning.