Data was available for 212,674 eligible severe sepsis discharges with complete covariate information, representing 209 hospitals. Four hospitals with fewer than 25 eligible cases, totaling 64 discharges, were excluded. A) Institutional variation in observed 30-day readmission; B) Institutional variation in 30-Day RSRRs; C) Caterpillar plot for 30-day RSRRs. RSRR = risk-standardized readmission rate. Error bars represent 95% confidence interval limits. Black line indicates 19.9%, or an observed-to-expected ratio of one.