Key result
Observational studies of airway devices with zero failures in small samples (<150 patients) cannot exclude unacceptably high failure rates, necessitating the reporting of upper 95% confidence limits.
Design
Editorial
Authors
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When reporting failure rates in observational studies, researchers should include the 95% confidence interval upper limit to quantify the worst expected performance of a device.
When reporting failure rates in observational studies, researchers should include the 95% confidence interval upper limit to quantify the worst expected performance of a device.
Jaideep J. Pandit (2012) reported an editorial. Observational trials of airway management devices was evaluated. Observational studies of airway devices with zero failures in small samples (<150 patients) cannot exclude unacceptably high failure rates, necessitating the reporting of upper 95% confidence limits.
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