The overall standardized mortality ratio - - between observed and expected deaths - - was 1 . 1 . however , this ratio varied from 0 . 7 to 1 . 4 . ulcerative colitis - related mortality accounted for 17 % of all deaths 被觀察者和期望值之間標(biāo)準(zhǔn)化后的總死亡率為1 . 1 。但是該比率在0 . 7到1 . 4之間波動(dòng)。潰結(jié)相關(guān)的病死率占總死亡人數(shù)的17 % 。
百科解釋
In epidemiology, the standardized mortality ratio or SMR, is a quantity, expressed as either a ratio or percentage quantifying the increase or decrease in mortality of a study cohort with respect to the general population.