Table 1.
Characteristics of samples randomly allocated to evaluate different groups of pictorial health warning labels in Experiment 1 & 2
| Experiment 1 (textual content) | Experiment 2 (imagery type) | ||||
|---|---|---|---|---|---|
| Characteristics | Group A11 (n=510) |
Group B12 (n=556) |
Group A23 (n=320) |
Group B24 (n=341) |
|
| Age (mean and range) | 26.9 (18 to 72) | 26.4 (18 to 80) | 26.9 (18 to 72) | 26.5 (18 to 68) | |
| Sex* | |||||
| Female | 48% | 40% | 53% | 48% | |
| Male | 52% | 60% | 47% | 52% | |
| Education | |||||
| Secondary or less | 23% | 24% | 23% | 20% | |
| Technical school | 13% | 10% | 13% | 8% | |
| High school | 50% | 50% | 50% | 54% | |
| University or more | 15% | 16% | 13% | 18% | |
| Smoking behavior | |||||
| Nonsmoker | 26% | 26% | 23% | 23% | |
| Nondaily smoker | 32% | 36% | 33% | 39% | |
| Daily smoker, < 5 per day | 24% | 23% | 27% | 24% | |
| Daily smoker, 5 or more per day | 19% | 15% | 18% | 14% | |
Group A1 evaluated three textual variants for each of three topics (Throat cancer, Premature birth, Heart attack)
Group B1 evaluated three textual variants for each of three topics (Addiction, Stroke, Lung cancer)
Group A2 evaluated two image variants (i.e., diseased organs, human suffering) for the topic of gangrene
Group B2 evaluated two image variants (i.e., diseased organs, human suffering) for the topic of emphysema
males less likely to have been assigned to evaluate stimuli in Group A1 than stimuli in Group B1 (p=0.007). No other statistically significant differences were found for sample characteristics, comparing Groups A1 with B1 and A2 with B2.