Design Population based, matched pair before and after analysis.
分析前和分析后均进行人群为基础的配对。
Methods a case control study with 100 cases of CHD and 100 pair matched controls was conducted with occupational stress factor scales and multivariate analysis.
方法应用职业紧张因素测试表，对100例冠心病患者1∶1配对病例对照进行多因素分析。
Methods a case control study with 100 cases of CHD and 100 pair matched controls was conducted with occupational stress factor scales and multivariate analysis.
方法应用职业紧张因素测试表，对100例冠心病患者1∶1配对病例对照进行多因素分析。
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