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Table 1 Logistic regression model: association between background variables and response

From: International health policy survey in 11 countries: assessment of non-response bias in the Norwegian sample

Variable Odds ratio (OR) OR 95% confidence interval p
Male (vs. female) 1.02 0.78-1.33 0.90
Mean age 0.99 0.97-1.01 0.33
Mean years as GP 0.98 0.96-1.00 0.07
Group practice (vs solo practice) 1.62 1.12-2.33 0.01*
Specialist (vs not specialist) 2.04 1.51-2.76 <0.001***
Available positions on GP list (vs not available) 0.78 0.60-1.02 0.07
Health region    
   West (vs South/East) 0.78 0.56-1.10 0.15
   Middle (vs South/East) 1.14 0.77-1.70 0.51
   North (vs South/East) 0.69 0.44-1.10 0.09
Municipality centrality    
   Least central (vs most central) 1.61 1.10-2.44 0.03*
   Little central (vs most central) 1.31 0.80-2.14 0.29
   Quite central (vs most central) 1.02 0.75-1.40 0.91
  1. Significance levels: ***p < .001,; **p < .01,; *p < .05