Pretest Score for Predicting Microbubble Contrast Agent Use in Stress Echocardiography: A Method to Increase Efficiency in the Echo Laboratory

Figure 4

Cumulative incidence proportion (CIP) of contrast agent use according to pretest score. Below the 𝑥-axis label, the denominators indicate the number of patients with each score and the numerators indicate the corresponding subset of patients who had contrast agent use. “8+” indicates an individual score of 8, 9, 10, or 11.