Criteriaa | Claassen et al [59] | Imes et al [60] | Stocks et al [61] | Sanderson and Michie [58] | Sanderson et al [57] |
---|---|---|---|---|---|
Question / objective sufficiently described? | 2 | 2 | 2 | 2 | 2 |
Study design evident and appropriate? | 2 | 2 | 1 | 2 | 2 |
Method of subject/comparison group selection or input variables described and appropriate? | 2 | 2 | 2 | 2 | 2 |
Subject characteristics sufficiently described? | 2 | 2 | 2 | 2 | 2 |
If interventional and random allocation was possible, was it described? | N/A | N/A | 2 | 2 | N/A |
If interventional and blinding of investigators was possible, was it reported? | N/A | N/A | 0 | 0 | N/A |
If interventional and blinding of subjects was possible, was it reported? | N/A | N/A | 1 | 0 | N/A |
Outcome and (if applicable) exposure measure(s) well defined and robust to measurement / misclassification bias? | 2 | 2 | 2 | 2 | 2 |
Sample size appropriate? | 0 | 0 | 1 | 2 | 2 |
Analytic methods described/justified and appropriate? | 2 | 2 | 2 | 2 | 2 |
Some estimate of variance is reported for the main results? | 1 | 2 | 2 | 1 | 2 |
Controlled for confounding? | 1 | 0 | 1 | 2 | N/A |
Results reported in sufficient detail? | 2 | 2 | 2 | 2 | 2 |
Conclusions supported by the results? | 2 | 2 | 2 | 2 | 2 |
Total score (%) | 82% | 82% | 79% | 82% | 100% |