Table 4.
Results of the linear regression analysis for the change in children’s sick days between baseline (2010) and follow-up (2011) in the BW Study
| All (n = 1268) | Grade 1 (n = 654) | |||||
|---|---|---|---|---|---|---|
| Covariate | B (SE) | β | p-Value | B (SE) | β | p-Value |
| Intervention | −0.30 (0.22) | −0.02 | 0.182 | −0.83 (0.28) | −0.06 | 0.003 |
| Grade 1 | −1.15 (0.23) | 0.09 | <0.001 | |||
| Female | 0.30 (0.22) | 0.02 | 0.175 | 0.11 (0.28) | 0.01 | 0.708 |
| Migration background | 0.49 (0.26) | 0.03 | 0.060 | 0.59 (0.34) | 0.04 | 0.085 |
| Sick days baseline value | −0.74 (0.02) | 0.77 | <0.001 | −0.78 (0.02) | 0.83 | <0.001 |
| R 2 | 0.62 | 0.69 | ||||
B regression coefficient, SE standard error, β standardized regression coefficient