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Table 9 Quality assessment results of quantitative studies

From: Implementing electronic health records in hospitals: a systematic literature review

Criteria quantitative studies [27] [29] [30] [44] [38] [39] [19]
Question/objective sufficiently described? 2 2 2 1 2 2 2
Study design evident and appropriate? 2 2 2 1 2 2 2
Method of subject/comparison group selection or source of information/input variables described and appropriate? 1 2 1 1 2 1 2
Subject (and comparison group, if applicable) characteristics sufficiently described? 2 2 2 1 2 2 1
If interventional and random allocation was possible, was it described? N/A N/A N/A N/A N/A N/A N/A
If interventional and blinding of investigators was possible, was it reported? N/A N/A N/A N/A N/A N/A N/A
If interventional and blinding of subjects was possible, was it reported? N/A N/A N/A N/A N/A N/A N/A
Outcome and (if applicable) exposure measure (s) well defined and robust to measurement/misclassification bias? Means of assessment reported? 0 2 1 0 2 2 2
Sample size appropriate? 2 2 2 2 2 2 2
Analytic methods described/justified and appropriate? 1 1 2 0 0 1 2
Some estimate of variance is reported for the main results? 1 0 2 0 1 1 N/A
Controlled for confounding? 2 1 2 0 1 1 N/A
Results reported in sufficient detail? 2 2 2 1 2 2 2
Conclusions supported by the results? 1 2 2 2 2 2 2
Total score/possible maximum score 16/22 19/22 20/22 9/22 18/22 18/22 17/18