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KMID : 0358119920180010131
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Journal of the Korean Public Health Association
1992 Volume.18 No. 1 p.131 ~ p.146
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Hostility and Cardiovascular Reactivity under Real-Life Stress Situation
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Abstract
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The authors selected 98 men by convenience sampling method from civilian applicants for the Navy special diving course in 1990 and administered a self-report Cook-medlby Hostility Scale (Ho) blood pressure measurements and sociodemographic data collecting questionnaire and interview to examine the relationship between dimensions of hostility and cardiovascular responses to real-life stress-inducing situation. The mean age was 20.3(Standard deviation. SD 1.0). The mean score of Ho was 21.2(SD, 6.1) and its range was 8-40. Smokers were 54.1% and 82. 7% were drinkers. The reaHife stress situation was presumed to be the process of listening to the safety precautions of pressure and oxygen resistance test before the running hyperbaric chamber after which systolic and diastolic blood pressure(SBP and DBP) and pulse rate(PR) were measured with the same methods as control resting measurements. The parameters were compared with control BP and PR. The total score of Ho was subdivided into´,3 categories with approximately equal intervals. And change of SBP between resting and stressful´, situation was from 130.4±8.3mmHg to 134.2±11.5mmHg in high hostility group, resulting in difference of 3. 77mniHg, which was statistically significant (P=0.027). Moderate and low hostility groups showed differences of 2.97mmHg and 0.45mmHg respectively both of which were not singificant. DBPand PR did not change siginficantly. Ho items were divided into 2 subsets according to Costa et al. and 6 subsets according to Barefoot et al_ to find out toxic components of Ho. Subset scores were dichotomized into low and high scores by median which was excluded to improve subset discrimination. High scores on hostile affect and other subsets by Barefoot et al. were significantly associated with greater SBP changes to stress situation. These results suggest that high scores on specific subsets of Ho may be associated with greater cardiova4cular reactive, under real life stress situation.
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KEYWORD
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