TNNI3 and amyloidosis: When evaluating time-dependent AUC curves for mortality (Figure 3; Table S3), the performance of hs-cTnI>80 ng/L alone and of the 2-variable staging system based on hs-cTnI and NP did not differ from that of the one adapted from National Amyloidosis Center staging system based on NP and eGFR.