Mean weights and intervention effect of foods provided in packed lunches at follow-up, adjusted for gender and baseline level
| Food type | Control (n=539) | Intervention (n=432) | Intervention effect | ||||
| Mean | 95% CI | Mean | 95% CI | Mean difference | 95% CI of difference | p Value | |
| Sandwich (g) | 100.5 | 88.8 to 112.2 | 103.7 | 91.4 to 116 | 3.2 | −4.7 to 11.1 | 0.43 |
| Other starchy food (g) | −5.1 | −15.3 to 5.1 | 2.4 | −8.3 to 13.1 | 7.4 | 0.5 to 14.4 | 0.04 |
| Total dairy (g) | 45.8 | 35.7 to 55.9 | 54.3 | 43.7 to 64.9 | 8.4 | 2.0 to 14.9 | 0.01 |
| Cheese (g) | 7.3 | 3.5 to 11.1 | 10.2 | 6.1 to 14.2 | 2.9 | −0.1 to 5.9 | 0.06 |
| Milk-based desserts (g) | 39.2 | 29.5 to 48.8 | 44.8 | 34.7 to 54.9 | 5.6 | −0.4 to 11.6 | 0.07 |
| Fruit (g) | 65.9 | 48.3 to 83.6 | 80.5 | 62 to 99.1 | 14.6 | 0.8 to 28.4 | 0.04 |
| Vegetables (g) | 5.3 | −1.2 to 11.9 | 15.8 | 8.9 to 22.7 | 10.5 | 5.5 to 15.5 | <0.01 |
| Unsweetened drinks (g) | 90.1 | 52.1 to 128.1 | 103.7 | 63.7 to 143.7 | 13.6 | −17.2 to 44.3 | 0.39 |
| Permitted desserts (g) | 3.6 | 0.1 to 7 | 3.9 | 0.3 to 7.6 | 0.3 | −2.1 to 2.8 | 0.78 |
| Confectionery (g) | 24.0 | 19 to 29 | 22.0 | 16.7 to 27.2 | −2.1 | −5.6 to 1.5 | 0.26 |
| Savoury snacks (g) | 16.5 | 13 to 20 | 13.6 | 10 to 17.3 | −2.8 | −5.5 to −0.2 | 0.04 |
| Sweetened drinks (g) | 202.1 | 164.1 to 240.1 | 197.1 | 157 to 237.2 | −5.0 | −34.3 to 24.4 | 0.74 |