Table 2 Characteristics of customers of the three participating supermarkets who completed the survey (n = 134)
| Â | n (%) |
|---|---|
Total | 134 (100) |
Sex | |
 Women | 78 (58.2) |
Age (category) | |
 Youth (16 < 18 year) | 16 (11.9) |
 Adults (18–55 year) | 86 (64.2) |
 Older adults (> 55 year) | 32 (23.9) |
Habitual purchase frequency at the checkout | |
 Never | 82 (61.2) |
 Sometimes | 30 (22.4) |
 Often | 22 (16.4) |
Number of participating customers per supermarket | |
 Supermarket 1 | 49 (36.6) |
 Supermarket 2 | 44 (32.8) |
 Supermarket 3 | 41 (30.6) |