Table 3.
Outcome | SPD group | Comparative risk messages, M (SD) or % | Control condition, M (SD) or % |
---|---|---|---|
E-cigarette- and cigarette-related beliefs | |||
Perceived absolute risks of e-cigarettes | SPD | 4.01 (1.64) | 4.46 (1.38) |
No SPD | 3.64 (1.69) | 3.74 (1.72) | |
Perceived absolute benefits of e-cigarettes | SPD | 2.91 (1.91) | 3.38 (2.07) |
No SPD | 2.27 (1.72) | 2.37 (1.65) | |
Perceived absolute risk of cigarettes | SPD | 5.27 (1.05) | 5.35 (0.77) |
No SPD | 5.10 (1.10) | 5.17 (1.12) | |
Perceived absolute benefits of cigarettes | SPD | 3.08 (1.68) | 3.55 (1.66) |
No SPD | 2.57 (1.49) | 2.67 (1.47) | |
Self-efficacy at posttest | SPD | 5.22 (2.38) | 5.19 (2.03) |
No SPD | 4.86 (2.19) | 5.01 (2.13) | |
Support for tobacco control | SPD | 4.61 (1.85) | 4.89 (1.66) |
No SPD | 3.94 (1.85) | 3.69 (1.85) | |
Behavioral intentions | |||
Intentions to smoke cigarettes | SPD | 3.26 (0.95) | 3.54 (0.62) |
No SPD | 3.36 (0.93) | 3.42 (0.81) | |
Intentions to switch to e-cigarettes completely | SPD | 5.26 (2.90) | 4.81 (2.72) |
No SPD | 4.24 (2.80) | 3.81 (2.85) | |
Behavioral intentions (only current smokers) | |||
Intentions to quit | SPD | 7.07 (2.95) | 6.82 (2.97) |
No SPD | 6.14 (3.23) | 6.36 (3.19) | |
Intentions to reduce the number of cigarettes | SPD | 3.21 (0.79) | 2.98 (0.76) |
No SPD | 3.15 (0.83) | 3.18 (0.85) | |
Intentions to seek quit help | SPD | 2.49 (1.05) | 2.68 (0.93) |
No SPD | 2.10 (0.98) | 2.20 (0.90) | |
Intentions to use nicotine replacement therapy | SPD | 2.72 (1.03) | 2.75 (0.92) |
No SPD | 2.43 (1.04) | 2.46 (0.98) | |
Perceived comparative risk | SPD | 44.3% (vs. 55.7%) | 22.9 (vs. 77.1) |
No SPD | 49.6% (vs. 50.4%) | 46.7 (vs. 53.3) | |
Dual use intentions | |||
Exclusive e-cigarette use (vs. dual use intentions) | SPD | 12.2% (vs. 45.3%) | 4.3% (vs. 57.4%) |
No SPD | 9.4% (vs. 39.0%) | 8.1% (vs. 34.5%) | |
Cessation (vs. dual use intentions) | SPD | 14.0% (vs. 45.3%) | 12.8% (vs. 57.4%) |
No SPD | 13.9% (vs. 39.0%) | 13.5% (vs. 34.5%) |
Notes.M – mean. SD – standard deviation. SPD – serious psychological distress.