Fig. 2 | Scientific Reports

Fig. 2

From: Prolonged elevated heart rate and 28-day mortality in acute exacerbations of chronic obstructive pulmonary disease patients insights from the MIMIC-IV database

Fig. 2

Example heart rate curves. The plots show the hourly heart rate over time (x-axis). The upper panel shows patients without peHR, and the lower panel shows patients with peHR. The red line shows the heart rate threshold of 100/min. A peHR was defined as 11 of 12 consecutive heart rates above 100/min or above the red line in these examples.

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