Figure.

Variation in utilization rate ICR at hospitals with ICR services. The hospital utilization rate rangeg from 0% to 100% in nearly all patient groups, demonstrating the wide variations in care seen across US hospitals in delivery of ICR. The middle line in the boxes represents the median value, the upper and lower lines of the boxes are the interquartile ranges, and the whiskers represent the maximum and minimum observation within 1.5 times the interquartile range. The diamond inside the boxes is the mean value and the open circles are oulier value. Abbreviations: ICR, inpatient cardiac rehabilitation; PCI, percutaneous coronary intervention