| Pre-intervention | Signage | Signage + taste | Signage + taste + price | Post-intervention | P value for interaction with period | Overall mean for all periods | P value for main effect |
---|---|---|---|---|---|---|---|---|
Purchaser | Â | Â | Â | Â | Â | NS | Â | 0.0068 |
Adult only | 39.8 | 40.8 | 42.4 | 45.3 | 46.8 |  | 43.5†|  |
Child only | 26.6 | 27.3 | 47.5 | 35.8 | 40.8 |  | 35.8‡ |  |
Both present | 30.6 | 35.4 | 40.3 | 46.8 | 35.6 |  | 39.0‡ |  |
Weight status a | Â | Â | Â | Â | Â | 0.0014 | Â | 0.0125 |
Non-overweight | 32.6 | 44.7†| 46.1 | 40.5†| 45.9 |  | 42.1 |  |
Overweight | 35.7 | 27.5‡ | 35.6 | 50.8‡ | 43.4 |  | 39.7 |  |
Sex a | Â | Â | Â | Â | Â | 0.0094 | Â | NS |
Male | 30.3 | 38.6 | 33.6†| 50.3†| 42.5 |  | 41.3 |  |
Female | 35.3 | 37.5 | 50.6‡ | 38.0‡ | 46.0 |  | 41.3 |  |
Overall mean | 33.7 | 37.9 | 43.9* | 43.3* | 44.9* | Â | 41.3 | 0.0048 |