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Table 1 Case mix, outcome, treatment and length of stay for patients admitted to critical care following oesophageal surgery for malignancy

From: Outcomes following oesophagectomy in patients with oesophageal cancer: a secondary analysis of the ICNARC Case Mix Programme Database

   All admissions
n = 7227
Single admissions
n = 6287
Readmitted patients - first admission
n = 873
Readmitted patients - subsequent admissions
n = 873
Case Mix     
Age (years), mean (SD) 64.3 (9.9) 64.2 (9.9) 65.6 (9.7) -
Sex (male), n (%) 5429 (75.1) 4752 (75.6) 629 (72.1) -
APACHE II score, mean (SD) 13.9 (4.8) 13.8 (4.9) 14.3 (4.5) 19.0 (6.4)
ICNARC physiology score, mean (SD) 12.4 (5.6) 12.3 (5.6) 12.8 (5.3) 20.0 (9.3)
SAPS II score, mean (SD) 25.1 (10.5) 25.0 (10.6) 25.8 (10.1) 39.3 (15.6)
Mortality     
Unit mortality, n (%) 320 (4.4) 314 (5.0) - 216 (24.7)
Ultimate acute hospital mortality, n (%) 778 (11.0) 483 (7.8) 289 (33.9) -
Treatment     
Received mechanical ventilation at any time during the first 24 hours of admission, n (%) 3572 (49.4) 3114 (49.5) 424 (48.6) 528 (60.5)
Received mechanical ventilation at any time during the first 24 hours of admission & P/F ratio < 26.6 kPa, n (%) 1470 (20.3) 1253 (19.9) 195 (22.3) 428 (49.0)
Activity     
   Unit length of stay (days), median (IQR) Unit survivors 2.8 (1.1 to 5.0) 2.8 (1.1 to 5.0) 2.0 (1.0 to 4.4) 6.0 (2.2 to 12.8)
  Unit non-survivors 10.9 (5.1 to 18.9) 10.9 (5.1 to 18.9) - 6.0 (1.6 to 17.1)
  All 2.8 (1.1 to 5.2) 2.9 (1.1 to 5.5) 2.0 (1.0 to 4.4) 6.0 (2.1 to 13.2)
   Total acute hospital length of stay (days), median (IQR) Hospital survivors 17 (14 to 27) 17 (14 to 27) 38 (23 to 59) -
  Hospital non-survivors 20 (12 to 37) 16 (9 to 33) 25 (15 to 44) -
  All 17 (14 to 28) 17 (13 to 24) 33 (20 to 55) -
  1. Data are presented for all admissions, for those patients that only had a single admission and those that required readmission. APACHE = Acute Physiology And Chronic Health Evaluation; ICNARC = Intensive Care National Audit & Research Centre; IQR = interquartile range; P/F ratio = partial pressure of arterial oxygen (PaO2) divided by the fraction of inspired oxygen (FiO2); SAPS = Simplified Acute Physiology Score; SD = standard deviation.