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Properties of Patient-Reported Outcome Measures for Post-Traumatic Stress Disorder in North Korean Defectors: A
Ocksim Kim1, Kyoung-A Kim2, Sang Hui Chu3
1Department of Nursing, Yonsei University College of Nursing and Brain Korea 21 FOUR Project, Seoul, Republic of Korea.
Objective:
Posttraumatic stress disorder (PTSD) is highly prevalent among North Korean defectors. This scoping review aimed to appraise the measurement properties of patient-reported outcome measures (PROMs) that assess PTSD among North Korean defectors.
Methods:
A systematic search was conducted using Research Information Sharing Service, ScienceON, PubMed, and Embase from their inception up to September 15, 2022. Each measurement properties of the included PROMs were evaluated using COnsensus-based Standards for the selection of health status Measurement INstruments (COSMIN) methodology. First, the methodological quality of each study on measurement properties was evaluated using the COSMIN Risk of Bias checklist. Second, the result of each single study on a measurement property was rated against the updated criteria for good measurement properties.
Results:
After screening the articles, nine instruments from 40 studies were included. Among these instruments, Impact of Event ScaleRevised was the most frequently used (13 studies [38.1%]), followed by the Trauma Scale for North Korean Refugees, PTSD Checklist, and Posttraumatic Diagnostic Scale. The theoretical basis of all PROMs was secure in terms of content validity. The most frequently tested characteristics in measurement properties for internal structure were internal consistency, criterion validity, and convergent validity. No study reported sufficient structural validity as confirmatory factor analysis results with a model fit.
Conclusion:
There is insufficient evidence to support the recommendation of a specific PROM for use among North Korean defectors with PTSD.
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