Figure 2
From: Heart rhythm complexity analysis in patients with inferior ST-elevation myocardial infarction
The ROC curves of HRV/HRC metrics ((2A) HRV metrics, (2B) HRC metrics) at 1 year postinfarct to predict LV systolic impairment. SDRR standard deviation of normal heartbeats; pNN20 percentage of the successive change in RR interval exceeds 20 ms; pNN50 percentage of the successive change in RR interval exceeds 50 ms; LF low frequency; HF high frequency; DFA detrended fluctuation analysis; slope 1–5 slope between scale 1–5; Area 1–5 area under MSE scale 1–5; Area 6–20 area under MSE scale 6–20; *p < 0.05.
