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Table 5 Explanatory variables for the variation in use of Index

From: Variations in contact patterns and dispatch guideline adherence between Norwegian emergency medical communication centres - a cross-sectional study

  Univariate linear regression Multiple linear regression
  Estimate (95% CI) P-value Estimate (95% CI) P-value
Working experience -0.011 (-0.018, -0.003) 0.004 -0.012 (-0.019, -0.004) 0.002
Rotation       
 With ground ambulance -0.218 (-0.360, -0.076) 0.003 -0.213 (-0.348, -0.078) 0.002
 With emergency room 0.054 (-0.057, 0.165) 0.337 0.033 (-0.074, 0.139) 0.545
 With others -0.093 (-0.283, 0.098) 0.339 -0.046 (-0.229, 0.137) 0.621
Repetition of use of Index       
 Regularly 0.214 (0.074, 0.354) 0.003 0.062 (-0.080, 0.205) 0.390
 Irregularly 0.090 (-0.023, 0.203) 0.118 -0.002 (-0.116, 0.111) 0.969
Focus on use of Index       
 Clear focus 0.522 (0.312, 0.732) <0.001 0.459 (0.240, 0.679) <0.001
 Some focus 0.293 (0.073, 0.512) 0.009 0.207 (-0.013, 0.426) 0.065
  1. Exploration of possible explanations for the variation in use of Index, by univariate and multiple linear regression models.
  2. Working experience = effect per year. P-value < 0.05 was regarded as statistically significant. Explained variation, R2 = 0.234 for the multiple linear regression model.