Multivariate regression analysis of association between central line bundle elements and CLABSI rates controlling for setting characteristics.

CI = Confidence Interval, CLABSI = Central Line-associated Bloodstream Infections.*CLABSI 3-Elements excluded chlorhexidine skin antisepsis from the model. Note: In all models the following co-variates were controlled for: geographic region, teaching status, hand hygiene, years in NHSN, bedsize, and type of ICU.CI = 置信区间（Confidence Interval），CLABSI = 中心静脉导管相关血流感染（Central Line-associated Bloodstream Infections）。*CLABSI三要素模型将洗必泰皮肤消毒项从模型中剔除。注：所有模型均控制了以下协变量：地理区域、教学资质、手卫生、参与NHSN的年限、病床规模以及ICU类型。