| Pre- and post- interventiona | Signage | Signage + taste | Signage + taste + price | P value for interaction with period | Overall mean for all periods | P value for main effect |
---|---|---|---|---|---|---|---|
Mean daily number of items sold b | |||||||
Dietary quality | Â | Â | Â | Â | NS | Â | < 0.0001 |
Healthy items | 18.1 ± 2.4 (37.7) | 21.5 ± 3.2 (42.3) | 18.4 ± 3.3 (35.7) | 27.4 ± 3.2 (46.5) |  | 21.4 ±1.5* (40.8) |  |
Unhealthy items | 29.9 ± 2.4 (62.3) | 29.4 ± 3.2 (57.7) | 33.1 ± 3.3 (64.3) | 31.5 ± 3.2 (53.5) |  | 31.0 ± 1.5 (59.2) |  |
Mean total daily sales | 24.0 ± 1.8 (23.0) | 25.4 ± 2.3 (24.3) | 25.7 ± 2.4 (24.6) | 29.4 ± 2.3 (28.1) |  | 25.7 ± 1.8 | NS |
Mean daily number of calories sold b | |||||||
Dietary quality | Â | Â | Â | Â | NS | Â | < 0.0001 |
Healthy items | 3067 ± 636 (27.6) | 3860 ± 847 (33.0) | 2766 ± 877 (23.5) | 4955 ± 857 (37.0) |  | 3662 ± 396* (30.5) |  |
Unhealthy items | 8041 ± 636 (72.4) | 7821 ± 847 (67.0) | 8999 ± 877 (76.5) | 8448 ± 857 (63.0) |  | 8327 ± 396 (69.5) |  |
Mean total calories sold | 5554 ± 480 (23.2) | 5841 ± 606 (24.4) | 5883 ± 647 (24.5) | 6701 ± 620 (27.9) |  | 5907 ± 381 | NS |
Mean daily gross profits in dollars b | |||||||
Dietary quality | Â | Â | Â | Â | NS | Â | < 0.0001 |
Healthy items | 40.52 ± 6.20 (35.0) | 46.05 ± 8.25 (38.3) | 38.92 ± 8.53 (31.5) | 37.04 ± 8.34 (31.8) |  | 40.63 ± 3.85* (34.1) |  |
Unhealthy items | 75.29 ± 6.20 (65.0) | 74.27 ± 8.25 (61.7) | 84.60 ± 8.53 (68.5) | 79.49 ± 8.34 (68.2) |  | 78.41 ± 3.85 (65.9) |  |
Mean total daily gross profits | 57.91 ± 4.67 (24.3) | 60.16 ± 5.91 (25.3) | 61.76 ± 6.29 (25.9) | 58.26 ± 6.03 (24.5) |  | 59.20 ± 3.82 | NS |