Cox models with robust standard errors were used to compare the hazard of death among children under 5 years of age in project and control villages.
采用Cox稳健标准误差模型来比较项目村庄和对照村庄五岁以下儿童的死亡风险。
2
For instance, new laws must be passed to place strict control over industrial pollution, the pub! IC must receive the education about the hazard of pollution and so on.
例如必须通过新的法律严格控制工业污染问题,大众必须接受污染危害的教育等。
3
Objective To discuss the contents and means for the evaluation of occupational hazardcontrol effect in construction items.