Figure 1.

A, Proportion of inpatients with Clostridium difficile (CDI)–associated and all-cause hospital readmissions within 30 days of discharge. CI, confidence interval. B, Summary of CDI-associated readmissions within 30 days of discharge in hospitalized participants with high-risk prognostic factors for recurrent CDI. Participants were defined as immunocompromised based on medical history or use of immunosuppressive therapy. Severe CDI was defined as a Zar score ≥2 based on the following scoring system: (1) age >60 years (1 point); (2) body temperature >38.3°C (>100°F) (1 point); (3) albumin level <2.5 g/dL (1 point); (4) peripheral white blood cell count >15 000/μL within 48 hours (1 point); (5) endoscopic evidence of pseudomembranous colitis (2 points); and (6) treatment in an intensive care unit (2 points).