medium · GMAT Verbal
After Meridian General Hospital introduced a new discharge-planning protocol, its 30-day readmission rate fell from 15.8 percent to 13.1 percent. Even so, the actual number of patients readmitted within 30 days was higher in the period after the protocol than in the period before it.
Which of the following, if true, most helps to explain how the number of readmitted patients could rise even as the readmission rate fell?
- The hospital revised its patient-satisfaction survey to include follow-up calls placed after discharge.
- The total number of patients discharged from the hospital rose by more than 50 percent after the protocol was introduced.
- The hospital began classifying some emergency-department return visits as observation stays rather than formal readmissions.
- The average age of patients discharged from the hospital decreased slightly after the protocol was introduced.
- The hospital added several new beds to its cardiac and post-surgical recovery units during this period.
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