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Forest plots comparing the comorbidities among patients who were readmitted compared with those with a single indexed admission. (A) Congestive heart failure; (B) ischaemic heart disease; (C) hypertension; (D) diabetes; (E) obesity; (F) chronic obstructive pulmonary disease (COPD)/asthma; (G) renal failure; (H) liver disease; and (I) cancer. CI, confidence interval.
