OBJECTIVE: Type D personality, the interaction of negative affectivity (NA) and social inhibition (SI), has been associated with a range of adverse health-related outcomes in cardiac patients and healthy participants. However, recent studies which have adopted a dimensional approach to Type D found no effect of Type D (NA × SI) on mortality or quality of life, after controlling for its constituent elements. To date, no study has determined if Type D is associated with negative health outcomes in healthy individuals when conceptualised as a dimensional variable. DESIGN: A cross-sectional self-report study with 177 healthy participants. MAIN OUTCOME MEASURES: Physical symptoms and quality of life. RESULTS: Using the traditional categorical analysis for Type D, it was found that Type D's report significantly more symptoms and significantly lower quality of life than non-Type D's report. However, when analysed as a dimensional construct (NA × SI), using multiple regression analysis, Type D (NA × SI) was not a significant predictor of physical symptoms or quality of life, after controlling for the main effects of NA and SI separately. CONCLUSION: These findings support those of recent studies that have identified null effects of Type D on outcome when analysed as a dimensional construct.
OBJECTIVE: Type D personality, the interaction of negative affectivity (NA) and social inhibition (SI), has been associated with a range of adverse health-related outcomes in cardiac patients and healthy participants. However, recent studies which have adopted a dimensional approach to Type D found no effect of Type D (NA × SI) on mortality or quality of life, after controlling for its constituent elements. To date, no study has determined if Type D is associated with negative health outcomes in healthy individuals when conceptualised as a dimensional variable. DESIGN: A cross-sectional self-report study with 177 healthy participants. MAIN OUTCOME MEASURES: Physical symptoms and quality of life. RESULTS: Using the traditional categorical analysis for Type D, it was found that Type D's report significantly more symptoms and significantly lower quality of life than non-Type D's report. However, when analysed as a dimensional construct (NA × SI), using multiple regression analysis, Type D (NA × SI) was not a significant predictor of physical symptoms or quality of life, after controlling for the main effects of NA and SI separately. CONCLUSION: These findings support those of recent studies that have identified null effects of Type D on outcome when analysed as a dimensional construct.
Authors: T Donisan; V C Bojincă; M A Dobrin; D V Bălănescu; D Predețeanu; M Bojincă; F Berghea; D Opriș; L Groșeanu; A Borangiu; C L Constantinescu; R Ionescu; A R Bălănescu Journal: Clin Rheumatol Date: 2017-04-27 Impact factor: 2.980