Unadjusted mean scores (SEs) on brand character ratings for students who had seen a cigarette pack in the previous 6 months in 2011 and 2013 by smoking status (weighted data)
| Smoking status | F-statistics and p values* | |||||||
|---|---|---|---|---|---|---|---|---|
| NSNS | SNS | Triers | MS | Total | Year | Smoking status | Interaction: year and smoking status | |
| 2011 weighted n | 2150 | 349 | 757 | 482 | 3738 | |||
| 2013 weighted n | 2558 | 353 | 586 | 359 | 3856 | |||
| Mean (SE) | Mean (SE) | Mean (SE) | Mean (SE) | Mean (SE) | ||||
| Winfield | ||||||||
| 2011 | 9.11 (0.10) | 10.91 (0.20) | 11.32 (0.16) | 15.04 (0.21) | 10.49 (0.09) | F(1,184)=61.09 | F(3,182)=280.43 | F(3,182)=1.79 |
| 2013 | 8.25 (0.09) | 10.05 (0.20) | 10.45 (0.14) | 14.18 (0.20) | 9.30 (0.08) | p<0.001 | p<0.001 | p=0.150 |
| Peter Jackson | ||||||||
| 2011 | 9.14 (0.10) | 11.07 (0.22) | 11.35 (0.16) | 15.13 (0.22) | 10.55 (0.09) | F(1,184)=49.59 | F(3,182)=245.03 | F(3,183)=1.46 |
| 2013 | 8.37 (0.09) | 10.30 (0.20) | 10.58 (0.16) | 14.36 (0.23) | 9.43 (0.09) | p<0.001 | p<0.001 | p=0.227 |
| Longbeach | ||||||||
| 2011 | 9.23 (0.11) | 11.17 (0.19) | 11.67 (0.20) | 15.10 (0.23) | 10.66 (0.11) | F(1,184)=56.52 | F(3,182)=238.52 | F(3,182)=2.60 |
| 2013 | 8.31 (0.09) | 10.25 (0.18) | 10.75 (0.17) | 14.17 (0.23) | 9.39 (0.08) | p<0.001 | p<0.001 | p=0.054 |
| Benson & Hedges | ||||||||
| 2011 | 9.34 (0.11) | 11.24 (0.22) | 11.63 (0.17) | 14.81 (0.21) | 10.69 (0.10) | F(1,184)=74.72 | F(3,182)=274.25 | F(3,182)=1.29 |
| 2013 | 8.34 (0.09) | 10.25 (0.21) | 10.63 (0.16) | 13.82 (0.22) | 9.37 (0.08) | p<0.001 | p<0.001 | p=0.278 |
Ninety-four students with missing data on smoking status excluded from analyses. Across the two surveys for the sample, missing data for brand characteristic variables never exceeded 2% (Winfield: n=42; Peter Jackson: n=63; Longbeach: n=63; Benson & Hedges: n=59).
Minimum=6 (least positive character) to maximum=30 (most positive character).
*Analyses included smoking status, sex, age, school denomination and state as covariates.
MS, past month smokers; NSNS, non-susceptible never-smokers; SNS, susceptible never-smokers; Triers, tried smoking.