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Gender differences in the relationship between depression and cardiac autonomic function among community elderly

✍ Scribed by Hsi-Chung Chen; Cheryl C. H. Yang; Terry B. J. Kuo; Tung-Ping Su; Pesus Chou

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
128 KB
Volume
25
Category
Article
ISSN
0885-6230

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Objective

The mechanism underlying the differential effect of depression on morbidity and mortality in men and women remains unknown. This survey was designed to examine gender effects on the relationship between depressive symptoms and cardiac autonomic function among community dwelling elderly.

Methods

Six hundred and six randomly selected community‐dwelling elderly men and women  ≥ 65 years of age were enrolled. Depressive symptoms were assessed with the Hospital Anxiety and Depression Scale. Cardiac autonomic function was evaluated by measuring heart rate variability (HRV) parameters. Frequency‐domain indices of HRV were obtained.

Results

Among the subjects, 58.4% were male with a mean age of 77.9 years. Stratified analyses by gender revealed a dose–response association between depressive symptoms and lower cardiac vagal control among elderly males (p = 0.003). Male subjects with mild depressive symptoms (depression scores: 5–6) showed prominent cardiac sympathetic predominance compared with the reference group (depression scores: < 5) (p = 0.005). In contrast, these findings did not exist among elderly females.

Conclusions

The association of depressive symptoms with poor cardiac vagal control and sympathetic predominance was more robust among elderly males than females. This finding may help explain gender differences in the association of depression with morbidity and mortality. Copyright © 2009 John Wiley & Sons, Ltd.

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