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Table 3 Ventilator-free, ICU-free, and specific organ system failure-free days by GDF-15 quartile.

From: Growth differentiation factor-15 and prognosis in acute respiratory distress syndrome: a retrospective cohort study

  Quartile 1 Quartile 2 Quartile 3 Quartile 4 P value
Ventilator-free days 22 [17, 24] 19 [2, 23] 12 0[23] 2 0[20] <0.001
ICU-free days 20 [13, 23] 17 [6, 21] 10 0[20] 0 0[19] <0.001
Cardiovascular 26 [21, 28] 24 [18, 27] 24 [14, 26] 19 [1, 26] <0.001
Central nervous system 28 [21, 28] 21 [21, 28] 21 0[28] 8 0[21] <0.001
Coagulation 28 [28, 28] 28 [24, 28] 28 [14, 28] 20 [1, 28] <0.001
Renal 28 [28, 28] 28 [27, 28] 28 [2, 27] 14 [2, 27] <0.001
Hepatic 28 [28, 28] 28 [25, 28] 28 [18, 28] 15 [2, 28] <0.001
  1. Data are presented as median [interquartile range].