Figure 2.

Persistent diarrhea, recurrence, or death. Study treatment was administered for 10 days and clinical cure was assessed at 12 days, at which time persistent diarrhea (>3 stools/24 hours and toxin A and/or B positive or requiring anti–Clostridium difficile infection [CDI] treatment) was defined as clinical failure. The events occurring before day 12 are deaths and the step increase in events at day 12 represents cases assessed to have persistent diarrhea at the posttreatment assessment. Events from day 13 to day 40 represent CDI recurrence or deaths. Abbreviation: HR, hazard ratio.