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Effects of provider training (progressive return to activity [PRA]-trained provider vs. usual care) on rates of clinically elevated symptoms over time. Clinically elevated symptoms are defined as a Neurobehavioral Symptom Inventory score >75th percentile based on normative data adjusted for self-reported deployment history.18 *Significant difference at a p-value <0.05. Adapted from a study by Bailie and colleagues.27
