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Table 1 Demographic data

From: Relation between presence of extended-spectrum β-lactamase-producing Enterobacteriaceae in systematic rectal swabs and respiratory tract specimens in ICU patients

Variable All patients (n = 1503) Surgical ICU patients (n = 356) Medical ICU patients (n = 1147) p
Age, year 63 (±17) 59 (±17) 64 (±17) <0.0001
Gender, male n (%) 983 (65.4) 230 (64.6) 753 (65.6) 0.7179
SAPS II, points 55 (±20.8) 42.2 (±13.9) 59.5 (±21) <0.0001
ICU mortality, n (%) 328 (21.8) 57 (16.0) 271 (23.6) 0.0021
Days of ICUa hospitalization, n 8 (3–19) 15 (7–26) 7 (3–15) <0.0001
Patients under MV, n (%) 1264 (84.1) 326 (91.6) 938 (81.8) <0.0001
Days of MV, n 6 (2–13) 10 (4–19) 5 (2–10) <0.0001
Main admission diagnosis, n (%)
 Respiratory distress 501 (33.3) 74 (20.8) 427 (37.2) <0.0001
 Neurological failure 407 (27.1) 175 (49.2) 232 (20.2) <0.0001
 Cardiac arrest 196 (13.0) 1 (0.3) 195 (17.0) <0.0001
 Sepsis or septic shock 122 (8.1) 24 (6.7) 98 (8.6) 0.2767
 Other 277 (18.5) 82 (23.0) 195 (17.0) 0.0103
  1. Data are expressed as absolute values (percentage), mean (standard deviation) or median (interquartile range)
  2. ICU Intensive care unit, SAPS II Simplified Acute Physiology Score II, MV Mechanical ventilation
  3. p statistical difference between patients from medical and surgical ICU