Skip to main content

Advertisement

Table 3 Results of univariable and multivariable analysis comparing primary BSI rates the 3 rd and 1 st year of participation in NEO-KISS

From: The step from a voluntary to a mandatory national nosocomial infection surveillance system: the influence on infection rates and surveillance effect

HCAI infection rate Old/voluntary participants (N = 26, starting in NEO-KISS January 2000- December 2002) New/mandatory participants (N = 95, starting in NEO-KISS January-December 2006)
  univariable analysis pooled data 3rdvs. 1st year multivariable analysis adjusted effect measures univariable analysis pooled data 3rdvs. 1st year multivariable analysis adjusted effect measures
BSI Incidence density (per 1000 patient days) RR = 0.79; (CI95 0.68-0.91); p = 0.001 IRRa = 0.78; (CI95 0.66-0.93); p = 0.005 RR =0.79; (CI95 0.69-0.90); p < 0.001 IRRa = 0.81; (CI95 0.68-0.97); p = 0.019
  1. CI95, 95% confidence interval; RR, relative risk; IRR, adjusted incidence rate ratio; p, p-value;
  2. a Poisson regression models with the outcome number BSI and log number patient days as offset parameter calculated by generalized estimating equation (GEE) model which account for clustering effect within a single NICU, consider the following parameters: birth weight (5 categories, 250gram steps), gestational age (4 categories, <27/27-28/29-30/>30 weeks), sex, mode of delivery (sectio) and surveillance endpoint (3 categories: 1800 g/transfer/died).