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. 2022 Apr 20;17(4):e0266696. doi: 10.1371/journal.pone.0266696

Fig 2. Adjusted difference in operating and total margin across quality quintiles: One year lag.

Fig 2

Hospitals within the lowest previous year’s 30-day hospital-wide readmission rate quintile and hospitals within the lowest previous year’s PSI-90 score quintile experienced higher (a) operating margins and (b) total margins compared to their respective highest quality quintiles. Abbreviations: Q = quintile Vertical bars are the 95% confidence intervals. Q5 (worst) is the reference quintile. 30-day Readmission Rates (median): Q1 = 14.6, Q2 = 15.1, Q3 = 15.3, Q4 = 15.6, Q5 = 16.3 Patient Safety Indicator-90 (median): Q1 = 0.75, Q2 = 0.85, Q3 = 0.91, Q4 = 0.96, Q5 = 1.08 For readmission rates and PSI-90 scores, higher values represent lower quality.