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Letters to the Editor
May 2007

Heart Rate Variability in Patients With Depression

Arch Gen Psychiatry. 2007;64(5):611-612. doi:10.1001/archpsyc.64.5.611

We read with great interest the article by Gehi et al1 as well as the subsequent letter to the editor by Birkhofer et al.2 In the large epidemiological study, no association was detected between depression and heart rate variability (HRV) in patients with stable coronary artery disease.1 The results were contrary to those of multiple studies of relatively younger populations.

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