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Table 1 Demographic and clinical characteristics of ARDS patients

From: Serum sphingosine-1-phosphate levels and Sphingosine-1-Phosphate gene polymorphisms in acute respiratory distress syndrome: a multicenter prospective study

CharacteristicValue (n = 121)
Age, years61.0 (43.5–69.0)
Male sex84 (69.4)
Current smokers35 (28.9)
ARDS risk factor
 Sepsis71 (58.7)
 Pneumonia22 (18.2)
 Aspiration12 (11.6)
 Acute pancreatitis16 (15.7)
 Vasopressors use at admission36 (29.8)
Coexisting conditions
 Hypertension33 (27.3)
 Diabetes16 (13.2)
 Coronary heart disease11 (9.1)
 Cerebrovascular disease15 (12.4)
 Chronic renal disease20 (16.5)
 COPD or asthma11 (9.1)
 Cancer11 (9.1)
Laboratory values on diagnosis of ARDS
 WBC count, × 109/L12.7 (10.14–17.5)
 Hematocrit, %28.0 (23.5–34.1)
 Platelet count, × 109/L174 (92.5–259)
 Serum bilirubin, μmol/L26.3 (12.5–49.8)
 Serum creatinine, μmol/L120.6 (69.5–173.9)
 Serum albumin, g/L29.4 (27.3–31.95)
 APACHE II score25 (21–29)
 No. of organ failures2 (0–3)
 Lowest PaO2/FiO2 ratio170.4 (124.0–257.0)
Berlin categories
 Mild44 (36.4)
 Moderate56 (46.3)
 Severe21 (17.4)
 Days in ICU16.0 (10.0–29.5)
 Ventilator-free days12.0 (7.0–21.0)
 Death in hospital33 (27.3)
  1. Continuous variables are presented as median (interquartile range); categorical variables are presented as No.(%)
  2. ARDS Acute respiratory distress syndrome, WBC white blood cell, APACHE II Acute Physiology and Chronic Health Evaluation II, No. of organ failures includes only non-pulmonary organ failures; ICU intensive care unit