Methods The patients with coronary heart disease were examined by ECG. 122 cases in J wave group and 106 cases in no J wave group(control group) were followed up at the endpoint cardiac events and counted.

• 方法诊断冠心病患者的心电图显示J波者为J波组,共122例,无J波者为对照组,共106例,随访终点为发生心脏事件并作统计分析。