对１１７例汽车司机应用ＨＢＤ－１心电多相信息诊断仪进行心电多相频谱分析，其功率谱、传递相移，幅度直方图等五项指标总分阳性率明显高于对照组，随着驾车年限的增加，总分阳性率有升高趋势，心电频谱分析对２３０例冠心病病人阳性检出率为８４．７８％。研究认为汽车司机是易发高血压、冠心病的危险人群，该方法在冠心病的环境流行病学研究中具有重要的临床、亚临床意义。 117 cases of car drivers using HBD-1 multi-phase ECG diagnostic instrument ECG multiphase spectrum analysis, the power spectrum, transmission phase shift, amplitude histogram and other five indicators of total score was significantly higher than the control group, with With the increase of driving time, the positive rate of total score had an increasing trend. The positive rate of ECG analysis in 230 patients with coronary heart disease was 84.78%. The study suggests that the driver of a car is a dangerous population prone to hypertension and coronary heart disease. This method has important clinical and subclinical significance in the environmental epidemiology of coronary heart disease.