钢铁企业在岗职工高血压流行病学调查刘仁瑜，苗永鹤，于光华我们按分层抽样法对本公司在岗职工进行了高血压流行病学调查，报道如下。对象与方法对象共调查５５７１人。按分层抽样法确定１０个厂处级单位的在岗职工，包括管理干部、脑力劳动者和各工种体力劳动者。各单位... Investigation on Hypertension Epidemiology of Staff and Workers in Iron and Steel Enterprises LIU Ren-Yu, Miao Yong-He, Yu Guang-Hua We conducted an epidemiological survey of hypertension on the employees of our company according to the stratified sampling method. The report is as follows. Subjects and Methods Subjects A total of 5,571 people were investigated. According to the stratified sampling method, employees at the level of the 10 factories at the level of employees are included, including management cadres, mental workers, and manual workers. each unit...