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

Table 2 Logistic regression model with data collection method as dependant variables (n = 27)

		OR	IC	p
Geographic level	International/national	1	-	0.14
Geographic level	Regional	0.292	0.056 – 1.525	0.14
Risk level	A	1	-	0.28
	B	0.375	0.039 – 3.605
	C	0.500	0.049 – 5.154
	D	0.071	0.005 – 1.059
Number of patients included		1.004	1.000 – 1.009	0.04
Number of centers		1.004	0.963 – 1.047	0.85
Number of variables		0.999	0.998 – 1.000	0.23
Planned duration of study		0.987	0.928 – 1.050	0.68
Number of medical teams involved		0.936	0.369 – 2.374	0.89

The modeled probability is the choice of an eCRF for the study as opposed to a pCRF.

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