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Identifying psychiatric diagnostic errors with the Safer Dx Instrument.

Fletcher TL, Helm A, Vaghani V, Kunik ME, Stanley MA, Singh H. Identifying psychiatric diagnostic errors with the Safer Dx Instrument. International journal for quality in health care : journal of the International Society for Quality in Health Care. 2020 Jul 20; 32(6):405-411.

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Abstract:

OBJECTIVE: Diagnostic errors in psychiatry are understudied partly because they are difficult to measure. The current study aimed to adapt and test the Safer Dx Instrument, a structured tool to review electronic health records (EHR) for errors in medical diagnoses, to evaluate errors in anxiety diagnoses to improve measurement of psychiatric diagnostic errors. DESIGN: The iterative adaptation process included a review of the revised Safer Dx-Mental Health Instrument by mental health providers to ensure content and face validity and review by a psychometrician to ensure methodologic validity and pilot testing of the revised instrument. SETTINGS: None. PARTICIPANTS: Pilot testing was conducted on 128 records of patients diagnosed with anxiety in integrated primary care mental health clinics. Cases with anxiety diagnoses documented in progress notes but not included as a diagnosis for the encounter (n  =  25) were excluded. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): None. RESULTS: Of 103 records meeting the inclusion criteria, 62 likely involved a diagnostic error (42 from use of unspecified anxiety diagnosis when a specific anxiety diagnosis was warranted; 20 from use of unspecified anxiety diagnosis when anxiety symptoms were either undocumented or documented but not severe enough to warrant diagnosis). Reviewer agreement on presence/absence of errors was 88% (?  =  0.71). CONCLUSION: The revised Safer Dx-Mental Health Instrument has a high reliability for detecting anxiety-related diagnostic errors and deserves testing in additional psychiatric populations and clinical settings.





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