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J Consult Clin Psychol. 2007 Aug;75(4):657-62.

Hospitalization cost offset of a hostility intervention for coronary heart disease patients.

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Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY10032, USA.


The authors evaluated hospitalization cost offset of hostility management group therapy for patients with coronary heart disease (CHD) from a previously published randomized controlled trial (Y. Gidron, K. Davidson, & I. Bata, 1999). Twenty-six male patients with myocardial infarction or unstable angina were randomized to either 2 months of cognitive-behavioral group therapy or an information (control) session. Therapy patients had a shorter average length of hospital stay (n = 13, M = 0.38 days, SD = 0.96) than did control patients (n = 13, M = 2.15 days, SD = 2.6), t(15.2) = -2.29, p = .04, over 6 months following therapy. The average hospitalization costs were significantly lower for therapy patients (M = 245(dollars), SD = 627(dollars)) than for control patients (M = 1,333(dollars), SD = 1,609(dollars)), t(15.6) = -2.27, p = .04. The cost-offset ratio is calculated by dividing the 1,088(dollars) of hospitalization savings by the 560(dollars) of therapy expense (1.00:1.94(dollars)), indicating that for every 1.00(dollars) spent on therapy, there is an approximate savings of 2.00(dollars) in hospitalization costs in the following 6 months. These findings support the hospitalization cost offset of hostility-reduction in CHD patients.

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