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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).