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Table 3 Mixed effects model estimating the effect of intervention

From: Training general practitioners in early identification and anticipatory palliative care planning: a randomized controlled trial

   B1 95 % CI p
Number of contacts with out-of-hours GP service last 3 months     
  Intervention group 0.4828 −0.733 − 1.698 0.4307
  Cause of death2    0.4599
   CHF −0.1016 −0.806 – 0.603  
   COPD −0.4729 −1.403 – 0.457  
   Combination 0.6775 −0.515 – 1.870  
  GP works fulltime 1.0229 −0.181 – 2.227 0.0946
  Age of GP3 −0.0792 −0.155 − −0.003 0.0418
  Interest in palliative care3 −0.8286 −1.461 − −0.196 0.0110
  Self-efficacy regarding PC3 0.3191 −0.384 − 1.022 0.3679
Number of contacts with own GP last month     
  Intervention group 0.7155 −0.935 − 2.366 0.3901
  Cause of death2    <.0001
   CHF −3.8582 −5.434 − −2.283  
   COPD −5.0800 −7.173 − −2.987  
   Combination −4.1761 −6.883 − −1.470  
  GP works fulltime −1.1778 −2.803 – 0.447 0.1526
  Age of GP3 −0.0035 −0.108 – 0.101 0.9474
  Interest in palliative care3 0.3770 −0.477 – 1.231 0.3813
  Self-efficacy regarding PC3 −0.6855 −1.649 – 0.278 0.1602
  Intervention group    
   OR4 95 % CI p
Hospitalisation(s) last three months yes/no     
  Intervention group 0.797 0.464 – 1.372 0.4078
  Cause of death2    0.0132
   CHF 0.729 0.423 – 1.256  
   COPD 2.300 1.056 – 5.011  
   Combination 3.165 1.092 – 9.172  
  GP works fulltime 0.917 0.539 – 1.561 0.7467
  Age of GP3 1.017 0.983 – 1.053 0.3207
  Interest in palliative care3 0.802 0.606 – 1.061 0.1202
  Self-efficacy regarding PC3 1.227 0.895 – 1.682 0.1993
Dying at home yes/no     
  Intervention group 1.130 0.646 − 1.976 0.6655
  Cause of death2    <.0001
   CHF 0.393 0.227 – 0.682  
   COPD 0.174 0.075 – 0.405  
   Combination 0.167 0.059 – 0.472  
  GP works fulltime 1.359 0.784 – 2.356 0.2697
  Age of GP3 0.995 0.960 – 1.030 0.7644
  Interest in palliative care3 1.109 0.833 – 1.477 0.4721
  Self-efficacy regarding PC3 0.776 0.558 – 1.079 0.1295
Dying in hospital yes/no     
  Intervention group 1.095 0.684 – 1.754 0.7012
  Cause of death2    0.0009
   CHF 1.501 0.862 – 2.611  
   COPD 3.692 1.870 – 7.292  
   Combination 2.617 1.102 – 6.217  
  GP works fulltime 0.863 0.541 – 1.376 0.5303
  Age of GP3 0.991 0.962 – 1.021 0.5468
  Interest in palliative care3 1.021 0.800 – 1.303 0.8654
  Self-efficacy regarding PC3 1.254 0.936 – 1.680 0.1271
  1. 1) B = difference of means
  2. 2) cause of death (cancer, CHF, COPD or combination of those; cancer is reference group), age of GP, working hours, interest in palliative care, and estimation of own capacity were included in the model as possible confounders
  3. 3) Effects of continuous variables are assessed as one unit offsets from the mean
  4. 4) OR = odds ratio