Fig. 6From: Common sampling and modeling approaches to analyzing readmission risk that ignore clustering produce misleading resultsPercent of discharges followed by a readmission within 30 days by number of discharges per patient. The risk of readmission increases as the number of discharges increases (r = 0.45, P < 0.001 by Pearson correlation with log-transformed number of discharges)Back to article page