[Methods] 352 noise and heat-exposed workers in a chemical fiber enterprise were taken as the observation group and 263 non noise and heat-exposed workers in the same factory were taken as the control group.

• 方法选取某化纤企业352名噪声和高温作业人员为观察组,263名同厂非噪声和高温作业人员为对照组,采用现场调查、环境监测和职业性体检的方法进行现场和健康情况的调查。