| Risk of Bias |
Author’s Judgment
Low Risk
Unclear
High Risk
|
Support for Judgment |
| Selection bias |
|
|
| Bias in definition and measurement |
|
Retrospective with antibiotic cultures only |
| Outcome measurement bias |
|
|
| Handling of missing data |
|
Identified but not addressed |
| Confounding |
|
Retrospective study, time bias |
| Bias of statistics or presentation of result |
|
Calibration unclear |
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