Assessing occupational exposure via the two - way random effects model 兩因素隨機效應(yīng)模型下平均暴露量的檢驗
Random effect model 隨機效應(yīng)模型
Empirical testing is conducted by using panel data with pooled regression model , fixed effect model and random effect model 通過分析,從全國來看,人均gdp 、市場需求和規(guī)模、聚集效應(yīng)、開放度是影響fdi的主要因素。
Relative risk ( rr ) was used as a measure of the effect of folic acid supplementation on the risk of stroke with a random effect model 采用相對危險度( rr )的大小,作為衡量葉酸補充治療在降低卒中發(fā)生危險有效性的指標。
Design : the medline and the cochrane library databases were searched for studies conducted from 1966 through 2005 . relative risks were pooled by using an inverse - variance weighted random effects model 設(shè)計:搜索medline和冠心病圖書館數(shù)據(jù)庫中從1966年到2005年的研究,采用一種反變量加權(quán)的隨機效應(yīng)模型計算相對危險度。