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Table 1 Demographic and clinical variables of patients according to delirium status

From: Delirium epidemiology in critical care (DECCA): an international study

Variables All patients (n= 497) Delirium statusa P value
   Delirium ( n = 75) No delirium (n = 157)  
Age (years) 62 (47-74) 64 (50-77) 61 (46-74) 0. 2
Male gender, n (%) 261 (52.5%) 41 (54.6%) 79 (50.3%) 0.57
SAPS3 score (points) 49 (40-61) 57 (48-64) 46 (34-56) < 0.0001
Charlson comorbidity index (points) 1 (0-3) 1 (0-3) 1 (0-3) 0.89
SOFA score (points) 4 (1-6) 4 (3-7) 3 (1-5) 0.004
Invasive mechanical ventilation, n (%) 191 (38.4%) 42 (56%) 36 (23%) < 0.0001
Use of vasopressors, n (%) 103 (20.7%) 22 (29.3%) 21 (13.4%) 0.007
Renal replacement therapy, n (%) 52 (10.4%) 9 (12%) 17 (10.8%) 0.82
Main reasons for ICU admission     
Sepsis, n (%) 76 (15.3%) 19 (25.3%) 17 (10.8%) 0.006
Cardiovascular, n (%) 75 (15.3%) 10 (13.3%) 30 (18.6%) 0.35
Respiratory failure, n (%) 70 (11.7%) 9 (12%) 24 (15.3%) 0.55
Neurologic, n (%) 24 (4.8%) 12 (9.1%) 5 (3.1%) 0.004
Invasive devices     
Central venous catheter 317 (63.8%) 64 (85.3%) 85 (54.1%) < 0.0001
Arterial catheter 158 (31.8%) 29 (38.6%) 32 (20.4%) 0.004
Urinary catheter 324 (65.1%) 62 (82.6%) 89 (56.7%) 0.0001
ICU LOS (days) 10 (4-24) 22 (11-40) 7 (4-18) < 0.0001
ICU mortality, n (%) 83 (16.7%) 15 (20%) 9 (5.7%) 0.002
Hospital mortality, n (%)b 88 (19.9%) 18 (24%) 13 (8.3) 0.0017
  1. The P values are for comparisons among patients with and without the diagnosis of delirium. aOnly those evaluated for delirium were considered. bOnly those with death or discharge at day 30 were considered (n = 711). SAPS3, Simplified Acute Physiology Score 3; SOFA, Sequential Organ Failure Assessment; ICU, intensive care unit; LOS, length of stay. Results are expressed as median (25% to 75% interquartile range) and number (%).