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Table 1 CLA-BSI incidence rate/1000 patient days, incidence rate ratio (IRR) in thepost-intervention period compared to baseline period.

From: Beyond the bundle - journey of a tertiary care medical intensive care unit to zerocentral line-associated bloodstream infections

Surveillance period Number of CLA-BSI Central line days CLA-BSI rate/1000 central line days IRR (95% CI) Percentage reduction* P value
Baseline (two-year period) 30 11,317 2.65 NA NA NA
Post-intervention year 1 11 5,589 1.97 0.74 (0.37-1.65) 26% 0.398
Post-intervention year 2 3 5,682 0.53 0.20 (0.06-0.65) 80% (35%-94%) 0.008
Post-intervention total 14 11,271 1.24 0.47 (0.25-0.88) 53% (12%-75%) 0.019
  1. *Compared to baseline period. CI, confidence interval; CLA-BSI, centralline-associated bloodstream infections; NA, not applicable.