The COVID-19 global pandemic is in many ways unchartered mental health territory, but history would suggest that long-term resilience will be the most common outcome, even for those most directly impacted by the outbreak. We address 4 common myths about resilience and discuss ways to systematically build individual and community resiliency. Actively cultivating social support, adaptive meaning, and direct prosocial behaviors to reach the most vulnerable can have powerful resilience promoting effects.
The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) introduced numerous revisions to the fourth edition's (DSM-IV) criteria for posttraumatic stress disorder (PTSD), posing a challenge to clinicians and researchers who wish to assess PTSD symptoms continuously over time. The aim of this study was to develop a crosswalk between the DSM-IV and DSM-5 versions of the PTSD Checklist (PCL), a widely used self-rated measure of PTSD symptom severity. Participants were 1,003 U.S. veterans (58.7% with PTSD) who completed the PCL for DSM-IV (the PCL-C) and DSM-5 (the PCL-5) during their participation in an ongoing longitudinal registry study. In a randomly selected training sample (n = 800), we used equipercentile equating with loglinear smoothing to compute a "crosswalk" between PCL-C and PCL-5 scores. We evaluated the correspondence between the crosswalk-determined predicted scores and observed PCL-5 scores in the remaining validation sample (n = 203). The results showed strong correspondence between crosswalkpredicted PCL-5 scores and observed PCL-5 scores in the validation sample, ICC = .96. Predicted PCL-5 scores performed comparably to observed PCL-5 scores when examining their agreement with PTSD diagnosis ascertained by clinical interview: predicted PCL-5, κ = 0.57; observed PCL-5, κ = 0.59. Subsample comparisons indicated that the crosswalk's accuracy did not differ across characteristics including gender, age, racial minority status, and PTSD status. The results support the validity of this newly developed PCL-C to PCL-5 crosswalk in a veteran sample, providing a tool with which to interpret and translate scores across the two measures.
Structured diagnostic interviews involve significant respondent burden and clinician administration time. This study examined whether we can maintain diagnostic accuracy using fewer posttraumatic stress disorder (PTSD) assessment questions. Our study included 1,265 U.S. veterans of the Afghanistan and Iraq conflicts who were assessed for PTSD using the Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (SCID-5). We used random forests to assess the importance of each diagnostic item in predicting a SCID-5 PTSD diagnosis. We used variable importance to rank each item and removed the lowest ranking items while maintaining ≥90% accuracy (i.e., efficiency), sensitivity, and other metrics. We eliminated six diagnostic items among the overall sample, four items among male veterans, and six items among female veterans. Our findings demonstrate that we may shorten the SCID-5 PTSD module while maintaining excellent diagnostic performance. These findings have implications for potentially reducing patient and provider burden of PTSD diagnostic assessment.
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