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Table 2 Prevalence and incidence density rates of multidrug-resistant organisms (MDRO) in 8 Chinese intensive care units (ICU) for the 686 patients

From: First multicenter study on multidrug resistant bacteria carriage in Chinese ICUs

Indicator All MDRO MRSA ESBL-E A. baumannii P. aeruginosa
Number of imported cases 247 22 224 9 4
Number of ICU-acquired cases 104 36 69 35 5
Prevalence rate on admission (n/100 admissions) 36.0  3.2 % 32.7 % 1.3 % 0.6 %
Prevalence rate on discharge (n/100 admissions) 51.2 % 8.5 % 42.7 % 6.4 % 1.3 %
Global prevalence density rate (n/1000 hospital-days) 71.1 ‰ 11.7 ‰ 59.3 ‰ 8.9 ‰ 1.8 ‰
Incidence density rate (n/1000 hospital-days) 35.0 ‰ 7.5 ‰ 21.5 ‰ 7.3 ‰ 1.0 ‰
Attack rate (n/100 admissions)
- overall 23.7 % 5.1 % 14.9 % 5.2 % 0.7 %
- ICU stay ≤ 1 week 13.2 % 2.1 % 9.4 % 1.8 % 0
- 1 week < ICU stay ≤ 2 weeks 40.3 % 11.5 % 26.2 % 12.2 % 0
- 2 weeks < ICU stay ≤ 3 weeks 56.5 % 19.5 % 21.4 % 15.9 % 0
- ICU stay > 3 weeks 82.1 % 13.7 % 46.7 % 11.8 % 9.6 %
  1. MRSA methicillin-resistant Staphylococcus aureus, ESBL-E Enterobacteriaceae producing extended-spectrum beta-lactamase