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Table 1 Description of the included population

From: A comparison of the CAM-ICU and the NEECHAM Confusion Scale in intensive care delirium assessment: an observational study in non-intubated patients

  n = 172 patients Cardiac surgery 23.3% Non-cardiac surgery 37.2% Internal medicine 40.5% P value of difference
Age in years, mean (SD) 60 (14.9) 67 (10.2) 58 (14.4) 58 (16.4) 0.002a
Male gender n = 102 28.4% 39.2% 32.4% 0.04b
Female gender n = 70 15.7% 34.3% 50.0%  
APACHE II score, mean (SD) 20.6 (9.0) - 20.1 (8.0) 21.1 (10.0) 0.65a
TISS 28 score, mean (SD) 28.6 (5.4) 32.7 (4.7) 28.4 (4.5) 26.5 (5.4) <0.001a
Length of stay in days, mean (SD) 7.0 (8.9) 5.7 (8.5) 7.3 (10.2) 7.4 (7.9) 0.59a
  1. aP value of difference calculated with one-way analysis of variance. bP value of difference calculated with the chi-square test. APACHE, Acute Physiology And Chronic Health Evaluation; SD, standard deviation; TISS 28, Simplified Therapeutic Intervention Scoring System 28.