Table 1

Changes in personal pack display, active smoking and pack orientation between preplain packaging (January–April 2012), and early (January–April 2013) and 1 year (January–April 2014) post-plain packaging

Versus pre-PPVersus early post-PP
Outcome (rate of…)RatePercentage of…Adjusted IRRp Value*Adjusted IRRp Value*
Packs to patrons…patrons who displayed pack
 Pre-PP1:8.711.5Ref1.21<0.001
 Early post-PP1:10.49.70.83<0.001Ref
 1 year post-PP1:10.39.70.840.0011.021.000
Active smokers to patrons…patrons who were smoking
 Pre-PP1:11.98.4Ref1.28<0.001
 Early post-PP1:15.76.40.78<0.001Ref
 1 year post-PP1:14.76.80.850.0131.080.607
Face-up packs to all packs†…packs† that were face-up
 Pre-PP1:1.285.2Ref1.150.037
 Early post-PP1:1.474.00.870.037Ref
 1 year post-PP1:1.285.70.991.0001.140.087
Concealed packs to all packs†…packs† that were concealed
 Pre-PP1:25.34.0Ref0.40<0.001
 Early post-PP1:11.38.92.48<0.001Ref
 1 year post-PP1:22.54.41.221.0000.490.005
External cases to all packs…packs that were in cases
 Pre-PP1:83.11.2Ref0.290.001
 Early post-PP1:28.33.53.440.001Ref
 1 year post-PP1:52.21.91.361.0000.400.012
  • *Bonferonni-adjusted p-values are reported..

  • †At pre-plain packaging, ‘all packs’ for the rates of face-up orientation and pack concealment includes branded packs in known orientations (face-up, face-down, standing or concealed); at post-plain packaging, ‘all packs’ includes plain packs in known orientations (face-up, face-down, standing or concealed). PP, plain packaging.