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|Title:||The relationship of hostility, negative affect and ethnicity to cardiovascular responses: An ambulatory study in Singapore|
|Citation:||Enkelmann, H.C., Bishop, G.D., Tong, E.M.W., Diong, S.M., Why, Y.P., Khader, M., Ang, J. (2005). The relationship of hostility, negative affect and ethnicity to cardiovascular responses: An ambulatory study in Singapore. International Journal of Psychophysiology 56 (2) : 185-197. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijpsycho.2004.12.003|
|Abstract:||This study tested the hypotheses that ambulatory heart rate and blood pressure would be higher for individuals high but not low in hostility when they experienced negative affect or social stress and that this interaction would be stronger for Indians compared with other Singapore ethnic groups. Ambulatory blood pressure monitoring was done on 108 male Singapore patrol officers as they went about their daily duties. After each BP measurement participants completed a computerized questionnaire including items on emotional experience. Individuals high in hostility showed higher systolic blood pressure when reporting negative affect whereas this was not true for those low in hostility. Ethnic differences were obtained such that Indians showed an increase in mean arterial pressure when angered whereas MAP was negatively related to anger for Malays and unrelated for Chinese. Also a three-way interaction between ethnicity, hostility, and social stress indicated that hostility and social stress interacted in their effects on DBP for Indian participants but not for Chinese or Malays. Finally, a three-way interaction was obtained between ethnicity, hostility and negative affect for heart rate in which heart rate increased with increasing levels of negative affect for Chinese high in hostility and Malays low in hostility but decreased with increasing negative affect for all other participants. These data are consistent with higher CHD rates among individuals high in hostility and also provide additional evidence on ethnic differences in cardiovascular reactivity in Singapore. © 2004 Elsevier B.V. All rights reserved.|
|Source Title:||International Journal of Psychophysiology|
|Appears in Collections:||Staff Publications|
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