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Type D personality mechanisms of effect: the role of health-related behaviour and social support

Williams, L. and O'Connor, R.C. and Howard, S. and Hughes, B. and Johnston, D. and Hay, J.L. and O'Connor, D.B. and Lewis, C.A. and Ferguson, E. and Sheehy, N.P. and Grealy, Madeleine and O'Carroll, R.E. (2008) Type D personality mechanisms of effect: the role of health-related behaviour and social support. Journal of Psychosomatic Research, 64 (1). pp. 63-69. ISSN 0022-3999

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Abstract

To (a) investigate the prevalence of type-D personality (the conjoint effects of negative affectivity and social inhibition) in a healthy British and Irish population; (b) to test the influence of type-D on health-related behavior, and (c)to determine if these relationships are explained by neuroticism. A cross-sectional design was employed; 1012 healthy young adults (225 males, 787 females, mean age 20.5 years) from the United Kingdom and Ireland completed measures of type-D personality, health behaviors, social support, and neuroticism. The prevalence of type-D was found to be 38.5%, significantly higher than that reported in other European countries. In addition, type-D individuals reported performing significantly fewer health-related behaviors and lower levels of social support than non-type-D individuals. These relationships remained significant after controlling for neuroticism. These findings provide new evidence on type-D and suggest a role for health-related behavior in explaining the link between type-D and poor clinical prognosis in cardiac patients.