Figure 2. Comparison of log-10-urine NT-proBNP/creatinine ratio values of the first samples obtained from each patient after inclusion, between cases requiring or not PICU admission and ventilatory support. Urinary NT-proBNP/creatinine is log-10-scaled because of its skewed distribution. Patients with that required PICU admission presented significantly higher median levels of log-10-urinary NT-proBNP/Creatinine ratio before initiating ventilatory support (1.85 (1.16-2.44) pg/mg vs 0.63 (0.45-0.84) pg/mg); p<0.001).