Table 3.
Primary analysis of total daily energy purchased.
| Calories |
95%CI | p | Pre-Intervention Mean |
% Change |
95% CI | |
|---|---|---|---|---|---|---|
| M (SD) | Daily Calories | Post-intervention | ||||
| Overall model | ||||||
| Modelling of the mean (identity link): | ||||||
| (Intercept) | 43742.9 (8625.1) | (33982.9, 53502.9) | <0.0001 | |||
| Day relative to intervention | 125.0 (107.9) | (2.9, 247.1) | 0.0458 | |||
| Transactions | 376.7 (7.0) | (368.8, 384.5) | <0.0001 | |||
| Week day (Ref = Monday) | (-2213.9, 8462.6) | |||||
| Tuesday | 3124.4 (4717.5) | 0.2525 | ||||
| Wednesday | −4084.109 (4443.1) | (-9111.9, 943.7) | 0.1127 | |||
| Thursday | 8091.4 (4652.6) | (2826.5, 13356.2) | 0.0029 | |||
| Friday | 4721.3 (5865.9) | (-1916.5, 11359.1) | 0.1646 | |||
| Temperature | −1524.5 (585.5) | (-2187.0, −862.0) | <0.0001 | |||
| Special Event | −18313.4 (12497.0) | (-32454.8, −4171.9) | 0.0118 | |||
| Intervention | −2410.2 (5992.6) | (-9191.3, 4371.0) | 0.4867 | 374551.9 | −0.6% | (-2.5%, 1.2%) |
| Modelling of the variance (log link): | ||||||
| (Intercept) | 11.155 (0.198) | (10.931, 11.379) | <0.0001 | |||
| Week day (Ref = Monday) | ||||||
| Tuesday | 0.092 (0.239) | (-0.179, 0.363) | 0.5052 | |||
| Wednesday | −0.015 (0.181) | (-0.220, 0.189) | 0.8842 | |||
| Thursday | 0.017 (0.225) | (-0.237, 0.272) | 0.8934 | |||
| Friday | 0.359 (0.259) | (0.066, 0.652) | 0.0172 | |||
| Site (Ref = Site 1) | ||||||
| Site 2 | −2.114 (0.201) | (-2.342, −1.886) | <0.0001 | |||
| Site 3 | −1.532 (0.213) | (-1.772, −1.291) | <0.0001 | |||
| By-site | ||||||
| Modelling of the mean (identity link): | ||||||
| (Intercept) | 39965.7 (4569.9) | (29612.6, 50318.9) | <0.0001 | |||
| Day relative to intervention | 73.0 (64.5) | (-44.6, 190.6) | 0.224766 | |||
| Transactions | 376.9 (8.0) | (363.1, 390.7) | <0.0001 | |||
| Week day (Ref = Monday) | ||||||
| Tuesday | 2320.3 (1498.1) | (-3148.7, 7789.4) | 0.406505 | |||
| Wednesday | −4615.0 (3340.7) | (-9762.9, 532.9) | 0.080204 | |||
| Thursday | 7701.1 (10391.2) | (2267.7, 13134.5) | 0.005912 | |||
| Friday | 4342.4 (2886.6) | (-2439.8, 11124.6) | 0.210756 | |||
| Temperature | −1287.7 (364.1) | (-1975.8, −599.6) | 0.000303 | |||
| Special Event | −13141.4 (717572.0) | (-28184.6, 1901.9) | 0.088184 | |||
| Intervention: | ||||||
| Site 1 | −3896.2 (6482.3) | (-38047.7, 30255.3) | 0.29893 | 927358.1 | −0.4% | (-1.2%, 0.4%) |
| Site 2 | 444.3 (5543.2) | (-6244.5, 7133.1) | 0.88971 | 130320.0 | 0.3% | (-4.5%, 5.1%) |
| Site 3 | −4891.8 (5287.4) | (-13340.6, 3557.1) | 0.11040 | 65977.7 | −7.4% | (-16.5%, 1.7%) |
| Modelling of the variance (log link): | ||||||
| (Intercept) | 11.264 (0.293) | (10.959, 11.569) | <0.0001 | |||
| Week day (Ref = Monday) | ||||||
| Tuesday | 0.131 (0.269) | (-0.144, 0.407) | 0.351 | |||
| Wednesday | −0.016 (0.253) | (-0.327, 0.294) | 0.918 | |||
| Thursday | 0.037 (0.314) | (-0.240, 0.314) | 0.794 | |||
| Friday | 0.339 (0.296) | (0.029, 0.649) | 0.033 | |||
| Intervention: | ||||||
| Site 1 | −0.194 (0.285) | (-0.515, 0.127) | 0.238 | |||
| Site 2 | −0.046 (0.278) | (-0.411, 0.318) | 0.803 | |||
| Site 3 | 0.057 (0.284) | (-0.290, 0.404) | 0.748 | |||
| Site (Ref = Site 1) | ||||||
| Site 2 | −2.202 (0.354) | (-2.586, −1.818) | <0.0001 | |||
| Site 3 | −1.674 (0.321) | (-2.035, −1.312) | <0.0001 | |||
Note. 95%CI based on the likelihood ratio test.