Table 3. Coefficients of the regression models on the associations between EHR implementation and perception on our 13 statements on EHR use, data quality, and data reuse (including p -value). Center B (paper-based) used as reference cente r ; interaction term is implementation combined with center A (legacy EHR) .

	Implementation	p -Value	Nurse	p -Value	Administrating staff	p -Value	Other staff	p -Value	Center A	p -Value	Interaction term	p -Value
EHR use
1. I have a clear overview of the patients' most important data (e.g., allergies)	0.09	0.564	0.28	0.035	0.50	0.016	0.48	0.001	0.11	0.446	−0.12	0.545
2. The documentation method directly supports me in providing good care	−0.30	0.053	0.55	0.000	1.11	0.000	0.97	0.000	−0.27	0.079	−0.19	0.360
3. The documentation method is time efficient	−0.45	0.008	0.41	0.013	0.84	0.000	0.82	0.000	−0.14	0.369	−0.18	0.446
4. The patient data are stored and exchanged securely	1.20	0.000	0.17	0.289	−0.03	0.884	0.02	0.912	1.08	0.000	− 1.34	0.000
5. The EHR provides all types of health care professionals a place to document patient data, in one integrated patient file	1.13	0.000	0.44	0.009	−0.15	0.573	0.28	0.136	−0.11	0.526	0.15	0.543
6. I document data in a way that colleagues can properly use those data in providing care	0.89	0.000	0.80	0.000	0.26	0.364	0.80	0.000	0.56	0.004	−0.68	0.016
Data quality
7. The patient data in the file are correct	−0.05	0.741	−0.04	0.811	−0.46	0.055	0.37	0.069	0.25	0.166	−0.41	0.062
8. The patient data in the file are up-to-date	0.56	0.000	−0.20	0.186	−0.37	0.071	0.14	0.398	0.26	0.095	−0.39	0.059
9. The patient data in the file are complete	0.31	0.041	0.08	0.599	0.40	0.049	0.42	0.011	0.14	0.381	−0.38	0.063
Data reuse
10. I can easily create an overview of the patients' data for the patient or external referrers	0.16	0.331	0.54	0.001	0.80	0.001	0.17	0.347	0.33	0.052	−0.63	0.006
11. The documentation method provides me with a way of properly communicating with colleagues and external referrers	0.45	0.007	0.25	0.093	0.55	0.028	0.29	0.096	0.68	0.000	− 1.05	0.000
12. The data I document on my patients provide me with an insight in the quality of the care I provide	−0.44	0.007	0.95	0.000	1.44	0.000	1.43	0.000	−0.24	0.151	−0.05	0.817
13. The documentation method supports me or my colleagues in doing research	0.58	0.001	1.49	0.000	1.67	0.000	1.19	0.000	0.05	0.775	−0.27	0.263

Abbreviation: EHR, electronic health record.

Note: p -Value after Bonferroni correction: 0.0019; significant values are given in bold.