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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

From: Effects of statewide health promotion in primary schools on children’s sick days, visits to a physician and parental absence from work: a cluster-randomized trial

  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   
  1. B regression coefficient, SE standard error, β standardized regression coefficient