Fig. 3From: Prognostic factors for ARDS: clinical, physiological and atypical immunodeficiencyKaplan-Meier survival curve for patients with ARDS using the cut-off values for the lymphocyte/neutrophil ratio and age obtained by ROC analysis. Log-rank test (P = 0.0283) (a), (P = 0.0064) (b), (P = 0.0057) (c), and (P = 0.0029) (d)Back to article page