Table 2 Summary of linear regression results for final test day
Unadjusted | Adjusted | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Branded (n= 63) Mean (SE) | Plain (n= 64) Mean (SE) | B | Lower | Upper | P | B | Lower | Upper | P | |
Primary outcomes | ||||||||||
Number of Cigarettes Smoked | 10.86 (0.45) | 10.34 (0.48) | −0.51 | −1.81 | +0.78 | 0.435 | −0.58 | −1.63 | +0.48 | 0.279 |
Volume (mL) of Smoke Inhaled | 765.15 (62.41) | 817.26 (55.24) | +52.10 | −112.70 | +216.91 | 0.533 | +54.78 | −112.50 | +222.07 | 0.518 |
Secondary Outcomes | ||||||||||
Quitting Contemplation Ladder | 4.35 (0.15) | 4.28 (0.12) | −0.07 | −0.44 | +0.31 | 0.719 | −0.09 | −0.31 | +0.13 | 0.432 |
Taste Test | 3.22 (0.10) | 3.51 (0.12) | +0.29 | −0.02 | +0.59 | 0.068 | +0.20 | −0.08 | +0.48 | 0.154 |
Experience of smoking | 3.77 (0.09) | 3.57 (0.10) | −0.20 | −0.47 | +0.07 | 0.140 | −0.18 | −0.45 | +0.09 | 0.183 |
Experience of using the pack | 4.63 (0.07) | 4.13 (0.13) | −0.50 | −0.80 | −0.21 | 0.001 | −0.52 | −0.82 | −0.22 | 0.001 |
Rating of pack attributes | 3.52 (0.08) | 1.91 (0.07) | −1.61 | −1.82 | −1.40 | < 0.001 | −1.59 | −1.80 | −1.39 | < 0.001 |
Rating of the health warning | 3.92 (0.11) | 4.41 (0.08) | +0.49 | +0.23 | +0.76 | < 0.001 | +0.51 | +0.24 | +0.78 | < 0.001 |
Change in behaviour | 2.06 (0.21) | 2.20 (0.20) | +0.14 | −0.43 | +0.71 | 0.629 | +0.11 | −0.45 | +0.68 | 0.695 |
Attitudes to plain packs | 6.66 (0.30) | 6.21 (0.05) | −0.45 | −1.27 | +0.38 | 0.285 | −0.39 | −1.22 | +0.44 | 0.350 |