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Table 1 Characteristics of patients included in the study

From: Influence of antibiotic pressure on multi-drug resistant Klebsiella pneumoniae colonisation in critically ill patients

  Total Patients colonized by
K. p. Pneumoniae
Patients not colonized by
K. pPneumoniae
p
  n = 1725 n = 308 n = 1417  
Age (SD) 60.9 (15.2) 58.1 (14.9) 61.5 (15.2) < 0.001
Male (%) 1097 (63.6) 203 (65.9) 895 (63.2) 0.364
Length of stay (SD) 9.85 (10.46) 19.3 (16.1) 7.8 (7.3) < 0.001
1ICU mMortality (%) 338 (19.6) 95 (30.8) 243 (17.1) < 0.001
APACHE II (median, IQR) 19 (14–24) 21 (18–25) 18 (13–24) < 0.001
Hematologic disease 120 (6.9) 19 (6.2) 101 (7.1) 0.531
Solid organ tTransplantation 73 (4.2) 18 (5.8) 55 (3.9) 0.133
Immunosuppression 267 (15.5) 60 (19.4) 207 (14.6) 0.035
Diabetes 351 (12.4) 65 (21.1) 268 (20.2) 0.722
Cirrhosis 64 (3.7) 18 (5.8) 46 (3.2) 0.028
2EPOCCOPD 351 (20.3) 93 (30.2) 258 (18.3) < 0.001
Mechanical vVentilation (%) 408 (23.7) 85 (27.6) 324 (22.8) 0.077
Renal rReplacement therapy (%) 142 (8.2) 21 (6.8) 121 (8.5) 0.319
Parenteral nNutrition 753 (34.1) 103 (33.4) 408 (28.8) 0.109
Origin     0.179
Emergency dDepartment 793 (46.0) 126 (40.9) 667 (47.1)  
Hospitalization 378 (21.9) 92 (29.9) 461 (32.5)  
Other hHospital 534 (30.9) 90 (29.2) 282 (19.9)  
Cause of admission     < 0.001
Respiratory infection 321 (18.6) 77 (25.0) 243 (17.1)  
Sepsis/Septic sShock 181 (10.5) 24 (7.8) 156 (11.0)  
Cardiovascular disease 567 (32.9) 60 (19.5) 507 (35.8)  
Other 976 (56.7) 147 (47.7) 511 (36.1)  
  1. 1ICU: Intensive care unit; 2COPD: Chronic obstructive pulmonary disease
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