抄録
The "TOKAI STUDY" is a retrospective study of 258 ischemic heart disease (IHD) patients admitted to the Tokai Univ. Hospital since last 7 years and 373 controls chosen from 495 individuals who visited our Health Counselling Center and were found to have subjectively and objectively normal heart.They were administered a multiple-choice questionnaire with 60 items, of which 15 items are about traditional coronary risk factors and 45 items are about behavior patterns. This questionnaire was developed by Hosaka, T. for the purpose of assessing Type A behavior pattern for Japanese more properly.Hypertension, smoking, diabetes mellitus, obesity and other traditional risk factors were reconfirmed. The 45 items about behavior patterns were factors analyzed for individual scoring, which found to be significantly different between IHD patients and controls (p<0.001), and the questionnaire can therefore be considered as a reliable means for detecting Type A behavior pattern.And there was no correlation with other risk factors except for cigarettes daily smoked, which confirms Western Collaborative Group Study and other western studies.It is therefore possible that Type A behavior pattern is an independent risk factor of IHD.