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Temperament, health-related behaviors, and autonomic cardiac regulation: the cardiovascular risk in young Finns study |
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| Authors: | Puttonen Sampsa Elovainio Marko Kivimäki Mika Koskinen Tuomas Pulkki-Råback Laura Viikari Jorma S A Raitakari Olli T Keltikangas-Järvinen Liisa |
| Affiliation: | aDepartment of Psychology, PO Box 9, University of Helsinki, FIN-00014 Helsinki, Finland bFinnish Institute of Occupational Health, Topeliuksenkatu 41 a A, FIN-00250 Helsinki, Finland cNational Research and Development Centre for Welfare and Health, PO Box 220, FIN-00531 Helsinki, Finland dInternational Centre for Health and Society, Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, WC1E 6BT London, UK eCardiorespiratory Research Unit, Kiinamyllynkatu 10, University of Turku, FIN-20520 Turku, Finland fDepartment of Medicine, Kiinamyllynkatu 4-8, University of Turku, FIN-20520 Turku, Finland gDepartment of Clinical Physiology, Kiinamyllynkatu 4-8, University of Turku, FIN-20521 Turku, Finland |
| Abstract: | Temperament, as indicated by Cloninger's psychobiological model predicts coronary heart disease risk, but its association with autonomic cardiac regulation, a potential mediating mechanism, is unclear. We examined the associations between temperament traits and autonomic cardiac regulation in a resting situation in 798 women and 580 men derived from a population-based sample. After adjustment for age and sex, harm avoidance was associated with lower level of high-frequency (HF) variation, root mean square successive differences (RMSSDs), the percentage of successive R–R intervals >50 ms (pNN50) and higher heart rate (HR) (all p ≤ 0.005), suggesting that harm avoidance is related to low parasympathetic activity. Additional adjustments for behavioral factors attenuated these associations more than the adjustment for biological risk factors. Novelty seeking was associated with higher RMSSD (p = 0.007) and pNN50 (p = 0.012) and lower heart rate (p < 0.001). With adjustment for behavioral risk factors, the associations with RMSSD (p = 0.136) and pNN50 (p = 0.236) attenuated to the null, but adjustment for biological risk factors had little effect. Reward dependence and persistence were unrelated to indices of cardiac regulation. |
| Keywords: | Temperament Personality Heart rate variability Cardiac control Temperament and character inventory Health behaviors Cholesterol Blood pressure |
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