Low life purpose and high hostility are related to an attenuated decline in nocturnal blood pressure.
| Autor: | Mezick EJ; Department of Psychology, University of Pittsburgh, PA 15213, USA., Matthews KA, Hall M, Kamarck TW, Strollo PJ, Buysse DJ, Owens JF, Reis SE |
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| Jazyk: | angličtina |
| Zdroj: | Health psychology : official journal of the Division of Health Psychology, American Psychological Association [Health Psychol] 2010 Mar; Vol. 29 (2), pp. 196-204. |
| DOI: | 10.1037/a0017790 |
| Abstrakt: | Objective: An attenuation of the nighttime decline in blood pressure (BP) predicts cardiovascular disease and cardiovascular-related mortality, beyond daytime BP levels. We investigated whether positive and negative psychological attributes were associated with sleep-wake BP ratios and examined sleep parameters as potential mediators of these relationships. Design: Two hundred twenty-four participants (50% men; 43% Black; mean age = 60 years) underwent ambulatory BP monitoring for 2 days and nights. Self-reports of positive and negative psychological attributes were collected. In-home polysomnography was conducted for 2 nights, and a wrist actigraph was worn for 9 nights. Main Outcome Measures: Sleep-wake mean arterial pressure (MAP) ratios. Results: After adjustment for demographics, body mass index, and hypertensive status, low life purpose and high hostility were associated with high sleep-wake MAP ratios. Depression, anxiety, and optimism were not related to MAP ratios. Sleep latency, fragmentation, architecture, and the apnea-hypopnea index were examined as potential mediators between psychological attributes and MAP ratios; only long sleep latency mediated the relationship between hostility and MAP ratios. Conclusion: Low life purpose and high hostility are associated with high sleep-wake BP ratios in Black and White adults, and these relationships are largely independent of sleep. (Copyright 2010 APA, all rights reserved.) |
| Databáze: | MEDLINE |
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