Key result
Perceived chronic stress and somatic symptom frequency explained 50% of the variability in post-traumatic brain injury fatigue.
Cross-Sectional (n=75)
Perceived chronic stress and somatic symptoms are significant correlates of fatigue following mild-to-moderate traumatic brain injury, suggesting potential targets for intervention.
Relationships between chronic perceived stress, cortisol response (area under the curve) and posttraumatic brain injury fatigue were examined with persons from outpatient settings. Seventy-five injured persons with traumatic brain injury and their relatives/significant others participated in this cross-sectional study. Using interviews and self-reported data from the Neurofunctional Behavioral Inventory, the Perceived Stress Scale, the Profile of Mood States-Fatigue subscale, the McGill Pain Scale, as well as self-collection of salivary cortisol over a 12-hour period (N = 50), we found that perceived chronic stress explained 40% of the variance in fatigue until depressive symptoms and pain were in the model. Hypocortisolemia was evident. Somatic symptom frequency and perceived chronic stress represented 50% of the variability in post-TBI fatigue. Fatigue and stress management interventions, as suggested in the Centers for Disease Control Acute Concussion guidelines, may be beneficial in reducing this common symptom.
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Bay et al. (2009) conducted a cross-sectional in Mild-to-moderate traumatic brain injury (n=75). Chronic perceived stress and cortisol response was evaluated on Post-TBI fatigue. Perceived chronic stress and somatic symptom frequency explained 50% of the variability in post-traumatic brain injury fatigue.
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