Fig. 1

Respiratory ECMO survival prediction score receiver operating characteristic curves. RESP score ROC curves for patients with (A) COVID-19 ARDS and (B) non-COVID-19 ARDS. The AUC for patients with COVID-19 ARDS was 0.54 (95% CI 0.41–0.66) and for patients with non-COVID-19 ARDS was 0.76 (95% CI 0.68–0.83). DeLong’s test for difference between AUCs was significant (p-value = 0.003). RESP  respiratory ECMO survival prediction, ROC  receiver operating characteristic, ARDS  acute respiratory distress syndrome, AUC  area under the curve