Table 2.
Mean and SD of the school-level mean scores for total nutrition knowledge, and its sub-domains, at baseline and at follow-up in the intervention and control schools.
| Baseline | Follow-up | |||||
|---|---|---|---|---|---|---|
| Intervention n = 12 | Control n = 13 | Intervention n = 12 | Control n = 13 | *Estimated difference at follow up (95% CI) | *p value | |
| Total number of pupils | 511 | 639 | 502 | 631 | ||
| Total score (max. 36) | 28.3(1.1) | 27.3(2.0) | 29.2(0.8) | 27.6(2.1) | 1.1(0.05 to 2.16) | 0.042 |
| Balanced diet domain (max. 15) | 11.6(0.4) | 11.3(0.9) | 12.1(0.5) | 11.5(0.9) | 0.6(0.1 to 1.1) | 0.018 |
| Balance of Good Health Plate domain (max. 5) | 3.7(0.4) | 3.5(0.4) | 4.1(0.4) | 3.6(0.3) | 0.3(0.0 to 0.6) | 0.041 |
| Ability to identify healthier foods (max. 15) | 12.1(0.6) | 11.6(0.9) | 12.1(0.4) | 11.6(1.0) | 0.3(-0.3 to 0.8) | 0.375 |
* p value and estimated difference in mean score between intervention and control schools at follow-up was adjusted for deprivation (percentage of children receiving free school meals), school size, and baseline score; also weighted for school size.