Table 4 Mixed-effects regression results expressed as percentage change in the number of items purchased
Mean number of items sold per week per machine* (s.d.) | Percentage change (95% CIs) | p-value (Kenward-Roger) | |||
|---|---|---|---|---|---|
Snacks | Standard | 167 (209) | Ref | Ref | |
Decrease Less healthy | 155 (191) | 77.8% (3.6, 205.2) | 0.037 | ||
& Increase Healthier | 182 (226) | −27.4% (− 58.9, 28.1) | 0.262 | ||
Decrease Healthier | 149 (185) | 64.1% (−3.6, 179.5) | 0.067 | ||
& Increase Less healthy | 171 (224) | − 39.5% (− 65.5, 6.2) | 0.078 | ||
Drinks | Standard | 99 (135) | Ref | Ref | |
Decrease Less healthy | 74 (96) | 12.5% (−21.0, 60.2) | 0.509 | ||
& Increase Healthier | 79 (97) | 13.4% (−41.1, 27.3) | 0.461 | ||
Decrease Healthier | 94 (123) | 38.0% (−5.3, 101.1) | 0.093 | ||
& Increase Less healthy | 103 (155) | −29.2% (− 52.6, 5.7) | 0.091 | ||