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Table 1 Description of the patients on admission to the ICU: comparison between ICU survivors and non-survivors

From: Near-infrared spectroscopy for assessing tissue oxygenation and microvascular reactivity in critically ill patients: a prospective observational study

  ICU survivors (n = 71) ICU non-survivors (n = 18) P
Age (years) 59 ± 18 67 ± 18 0.080
Gender (n, male; female) 49; 22 13; 5 0.518
APACHE II score 15 ± 7 23 ± 5 <0.001
SOFA score 6 ± 3 11 ± 5 <0.001
Admission diagnosis (n)    0.131
 Trauma (36) 33 3  
 Neurologic (20) 17 3  
 Respiratory (8) 6 2  
 Sepsis (8) 5 3  
 Surgerya (7) 4 3  
 Cardiac (3) 2 1  
 Other (7) 4 3  
Comorbidities (n)    0.362
 None (34) 30 4  
 Arterial hypertension (27) 20 7  
 Chronic vascular disease (17) 11 6  
 Cardiac disease (24) 16 8  
 Chronic respiratory disease (15) 8 7  
 Diabetes mellitus (14) 12 2  
 Obesity (13) 9 4  
 Cancer (8) 5 3  
 Hypercholesterolaemia (6) 4 2  
 Chronic renal failure (6) 4 2  
ICU length of stay 9 (5–15) 3 (2–11) 0.006
Heart rate (bpm) 80 ± 22 93 ± 28 0.036
Mean arterial pressure (mmHg) 87 (74–95) 74 (56–87) 0.046
Hb (g/dL) 11 ± 1.5 11 ± 2.3 0.959
Arterial lactate (mmol/L) 1.3 (0.9–1.8) 3.1 (1.5–5.6) <0.001
Any vaspressor    0.006
 Yes 34 15  
 No 37 3  
  1. Results are presented as mean ± SD or median (1st-3rd quartile). aThree high-risk scheduled surgical operations (two pulmonary lobectomies, one partial pancreatectomy complicated by intra-operative bleeding), four emergency interventions (three ruptured abdominal aortic aneurysms, one fasciotomy for soft tissue infection). APACHE acute physiology and chronic evaluation, SOFA sequential organ failure assessment