心肌梗塞及心绞痛的发病常有一定规律性。为了探讨其容易发病的时间带,我们对1981～1988年收治的752例患者从时间生物医学角度进行了回顾性分析。本组男538例,女214例,年龄39～82岁,平均60.5岁;其中心肌梗塞416例,心绞痛336例。有高血压病史者474例,动脉硬化症、冠状动脉供血 The incidence of myocardial infarction and angina often have some regularity. In order to explore its easy time of onset, we retrospectively analyzed 752 patients from 1981 to 1988 from a biomedical time-to-time perspective. The group of 538 males and 214 females, aged 39 to 82 years, mean 60.5 years; of which 416 cases of myocardial infarction, 336 cases of angina pectoris. There are 474 cases of history of hypertension, atherosclerosis, coronary blood supply