In univariable analysis, the hazard ratio (HR) for post-AMI HF per standard deviation (SD) of S100A8/A9 was 1.92 (1.69–2.19), P < 0.001, and that of S100A12 was 1.09 (0.97–1.24), P = 0.157 (Fig. 2b, Supplementary Table 7). Here, S100A8 is linked to hydrops fetalis.