Fig. 7: ECG morphology analysis of combinations of ECG-K+ and Lab-K+ on adverse outcomes.

A Distributions of ECG morphology in each ECG-K+ and Lab-K+ group. Bars represent the mean or prevalence where appropriate and corresponding 95% conference intervals, which are adjusted by hospital. B Risk analysis of selected ECG morphologies on adverse outcomes. The hazard ratios and odds ratios were adjusted by hospital. Red, gray, and blue bars denote significantly positive, non-significant, and negative associations, respectively, with the corresponding outcomes.