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Table 4 Predictive validity of Berlin definition acute respiratory distress syndrome (ARDS) patients in Validation of biomarkers in Acute Lung Injury Diagnosis (VALID)

From: Is there still a role for the lung injury score in the era of the Berlin definition ARDS?

  Mild Moderate Severe P-valuea
Overall number (%) of patients, N = 550 76 (14) 257 (47) 217 (39)  
Lung Injury Score, mean ± SD 2.1 ± 0.4 2.5 ± 0.5 3.3 ± 0.4 < 0.001
Mortality, number (%) 14 (18) 48 (19) 73 (34) < 0.001
Ventilator-free days, median (IQR) 20 (7.5 to 25) 18 (9 to 23) 14 (0 to 22) < 0.001
Number (%) of survivors, N = 415 62 (15) 209 (50) 144 (35)  
Duration of mechanical ventilation in survivors, median (IQR) 6 (3 to 12) 7 (4 to 13) 8 (5 to 14.5) 0.006
ICU days in survivors, median (IQR) 9 (6 to 15) 10 (6 to 16) 11.5 (7 to 19) 0.07
Length of hospitalization in survivors, median (IQR) 16 (10 to 23) 16 (11 to 26) 19 (13 to 29) 0.08
  1. aTest of trend.
  2. Abbreviations: ARDS = acute respiratory distress syndrome, ICU = intensive care unit, IQR = interquartile range, SD = standard deviation.