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Table 2 Primary BSI, Secondary BSI and CLABSI rates per each phase

From: A multicenter quasi-experimental study: impact of a central line infection control program using auditing and performance feedback in five Belgian intensive care units

Phase Admissions Patient-days CVC-days Mean CVC-utilization ratio Total BSI episodes Primary BSI (no CVC) Secondary BSI (per 1,000 Patient- days) CLABSI [mean CLABSI per 1,000 CVC-days*]
1 1,354 7,604 6,045 0.79 ± 0.07 37 1 12 (1. 58) 24 [4.00 (1.94-6.06)]
2 1,571 7,882 6,399 0.80 ± 0.11 33 6 15 (1.90) 12 [1.81 (0.46-3.17)]
3 1,439 7,615 6,023 0.78 ± 0.10 44 0 28 (3.68) 16 [2.73 (1.17-4.29)]
Total 4,364 23,101 18,467 0.79 ± 0.09 114 7 55 (2.38) 52 [2.85 (1.97-3.72)]
  1. *Incidence Rate Ratio (95% Confidence Interval) and p-value (Poisson regression).
  2. In the phase 2 compared to phase 1: 0.49 (0.24-0.98), p = 0.043.
  3. In the phase 3 compared to phase 1: 0.67 (0.36-1.26), p = 0.212.
  4. In the phase 3 compared to phase 2: 1.37 (0.65-2.89), p = 0.413.