Trauma-induced weight loss and cognitive deficits among former prisoners of war.

Former prisoners of war (POWs) from the Korean Conflict and WWII reporting confinement weight losses of greater than 35% (n = 60) and less than or equal to 35% (n = 113) and non-POW combat veterans (n = 50) were compared on WAIS-R and Wechsler Memory Scale (WMS) Logical Memory indices. High weight-loss POWs performed more poorly than combat veterans on Performance IQ, Arithmetic, Similarities, and Picture Completion subtests, Witkin-Goodenough Attention-Concentration Factor, and WMS Immediate and Delayed Recall and more poorly than low weight-loss POWs on Arithmetic, Attention-Concentration Factor, and the WMS immediate memory measure. Low weight-loss POWs and combat veterans differed only on WMS immediate memory. Findings support the Thygesen, Hermann, and Willanger (1970) hypothesis that severity of POW confinement stress reflected by trauma-induced weight loss is predictive of long-term compromise in cognitive performance.