Anger, depression, and disability: a path analysis of relationships in a sample of chronic posttraumatic headache patients.

Anger and depression are common affective concomitants of chronic headache. Previous research suggests that the affective component of headache may contribute to the patient's perceptions of the degree to which the headache is disabling. The present study examined the relationship between anger expression, anger suppression, depression, and headache-related disability (interference with function) in a sample of chronic posttraumatic headache patients. A path analytic model indicated a direct relationship between depression and perceived disability. Anger suppression and anger expression each had a direct influence on depression, but their effects on disability were mediated through depression. The results partially replicate a previous path analytic study of the relationships among these variables in a chronic headache sample.