Comparison of outcome variables at baseline and follow-up and assessment of the difference at follow-up between the two groups adjusting for the baseline levels
| Control | p Value* | Intervention | p Value* | Adjusted difference or relative risk (RR) | p Value | |||
|---|---|---|---|---|---|---|---|---|
| Baseline | Follow-up | Baseline | Follow-up | (95% CI)† | ||||
| Physical activity index (n (%)) (RR) | 0.3 | 0.002 | 1.17 (0.86 to 1.60) | 0.3 | ||||
| Level 1 | 93 (38.3) | 89 (36.6) | 130 (48.9) | 105 (39.5) | ||||
| Level 2 | 48 (19.8) | 36 (14.8) | 41 (15.4) | 49 (18.4) | ||||
| Level 3 | 53 (21.8) | 65 (26.8) | 62 (23.3) | 51 (19.2) | ||||
| Level 4 | 49 (20.2) | 53 (21.8) | 33 (12.4) | 61 (22.9) | ||||
| Prudent diet SD score (mean (SD)) | 0.0 (0.9) | −0.1 (0.9) | 0.052 | 0.2 (1.0) | 0.1 (1.0) | 0.005 | 0.00 (−0.11 to 0.12) | 0.9 |
| General self-efficacy (mean (SD)) | 14.9 (1.9) | 14.2 (1.5) | <0.001 | 15.1 (1.7) | 14.6 (1.5) | <0.001 | 0.26 (0.01 to 0.5) | 0.04 |
| Specific efficacy for healthy eating (mean (SD)) | 14.5 (2.3) | 14.4 (2.1) | 0.6 | 14.5 (2.3) | 14.2 (2.3) | 0.15 | −0.16 (−0,54 to 0.22) | 0.4 |
| Specific efficacy for exercising (mean (SD)) | 12.3 (2.9) | 12.5 (2.9) | 0.3 | 12.3 (2.8) | 12.4 (2.8) | 0.7 | −0.11 (−0.55 to 0.34) | 0.6 |
| Sense of control: total (mean (SD)) | 27.0 (2.5) | 25.5 (2.0) | <0.0001 | 27.6 (2.8) | 26.0 (2.0) | <0.0001 | 0.35 (0.05 to 0.65) | 0.02 |
*For the physical activity index, Wilcoxon matched pairs signed-rank test was used to test for differences between baseline and follow-up in each group. For all other variables a matched-pairs t test was used.
†This column gives the adjusted difference at follow-up between intervention and control sites, adjusted for baseline values.