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Table 2 Characteristics of ICU admissions of ≥2 days before and after sink removal

From: Reduced rate of intensive care unit acquired gram-negative bacilli after removal of sinks and introduction of ‘water-free’ patient care

  Pre intervention Post intervention
  n % n % P-value
ICU admissions with LOS of ≥48 h N = 1496   N = 1444   
First or re-admission
 Primary admissions 1351 90.3% 1307 90.5% 0.85
 Re-admissions 145 9.7% 137 9.5%  
 Age, median (IQR) 62 [50–70] 63 [52–71] 0.07
 Male sex, n (%) 890 59.5% 856 59.4% 0.94
 BMI, mean (SD) 26.1 5.3 26.3 5.2 0.31
 ICU mortality, n (%) 174 11.6% 146 10.1% 0.19
 Hospital mortality, n (%) 225 15.0% 207 14.3% 0.59
 ICU Lenght of stay (LOS), median days (IQR) 3 [2–6] 3 [2–6] 0.90
ICU LOS, n (%)
 2 days 674 45.1% 653 45.2% 0.38
 3–4 days 355 23.7% 351 24.3%  
 5–6 days 127 8.5% 113 7.8%  
 7–9 days 106 7.1% 94 6.5%  
 10–13 days 81 5.4% 60 4.2%  
  ≥ 14 days 153 10.2% 173 12.0%  
 Apache score, mean (SD) 18.7 7.2 18.2 7.2 0.27
 Days on respirator, median (IQR) 2 [0–4] 1 [0–4] 0.38
Comorbidity at ICU admission, n ‘yes’ (%)
 Any comorbidity 573 38.3% 504 34.9% 0.06
 Cardiovascular insufficiency 93 6.2% 70 4.8% 0.11
 Respiratory insufficiency 116 7.8% 71 4.9% 0.002
 Diabetes 180 12.0% 168 11.6% 0.74
 Chronic renal insufficiency 97 6.5% 83 5.7% 0.41
 Neoplasm 130 8.7% 112 7.8% 0.36
 Immune-insufficiency 166 11.1% 166 11.5% 0.93
Medical specialty, n (%)
 Surgery 330 22.1% 361 25.0% 0.04
 Neurosurgery 239 16.0% 200 13.9%  
 Thoracic surgery 234 15.6% 245 17.0%  
 Pulmonary disease 125 8.4% 139 9.6%  
 Internal medicine 64 4.3% 72 5.0%  
 Other 504 33.7% 427 29.6%  
Admission type, n (%)
 Medical 732 48.9% 712 49.3% 0.06
 Elective 528 35.3% 464 32.1%  
 Emergency 236 15.8% 268 18.6%  
Admission source, n (%)
 Emergency 372 24.9% 344 23.8% 0.27
 Clinical department 292 19.5% 302 20.9%  
 Other IC unit 93 6.2% 69 4.8%  
 Other 739 49.4% 729 50.5%