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Table 3 Linear regression model with cost log and duration as dependant variables (n = 27)

From: Comparison of two data collection processes in clinical studies: electronic and paper case report forms

   Parameter estimate SE Pvalue
Duration of the study:     
CRF* Paper - - 0.045
Electronic −10.14 4.79  
Participating centers*   0.48 0.13 0.001
Cost of the study (log):     
CRF Paper - - 0.41
Electronic 0.29 0.35  
Design* Trial without randomization - - 0.002
Trial with randomization −1.33 0.40  
Non-interventional study −2.51 0.62  
Number of patients included*   −0.001 0,0004 0.021
  1. SE: standard error.
  2. *Explanatory variable (p < 0.05).