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Post-Acute Care Associated With Higher Hospital Readmission Rates

by Bidita Debnath on January 21, 2016 at 12:59 AM
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 Post-Acute Care Associated With Higher Hospital Readmission Rates

A report by the Institute of Medicine found that the primary driver of regional variations in Medicare spending is the differences in the costs of post-acute care. But little has been known about why those variations occur.

A new study by UCLA researchers published in the February issue of the peer-reviewed journal Medical Care found that some hospitals refer fewer than 3 percent of their patients to inpatient facilities while others refer up to 40 percent. Similarly, some hospitals prescribe home health care for just 3 percent of patients; others refer as many as 58 percent of patients - a finding that prompted the researchers to investigate whether the wide variation correlated with differences in the overall quality of care delivered by the hospitals.

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They found no association between how often hospitals used post-acute care and the number of recorded postoperative deaths or complications. But the study did discover a relationship between "indirect" measures of hospital quality - metrics like length of stay and readmission rates - and use of post-acute care. Specifically, hospitals that tend to refer patients to inpatient facilities more often also tend to have shorter lengths of stay and higher readmission rates.

"These findings suggest that some hospitals may be using post-acute care as a substitute for inpatient care," said Dr. Greg Sacks, the study's lead investigator, a resident in general surgery resident at UCLA and a Robert Wood Johnson/Veterans Affairs Clinical Scholar. "This might lead to patients being discharged from the hospital prematurely, which then results in higher readmission rates."
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Sacks said surgeons and hospitals have virtually no guidelines to help them determine the best post-acute care services for their patients - and that better recommendations could help reduce some of the variation in how the services are used and the costs associated with them.

The researchers analyzed data for 112,620 patients treated at 217 hospitals in 39 states. They drew information from a national surgery registry and Medicare claims, as well as from American Hospital Association annual surveys from 2005 through 2008. They calculated the correlation between post-acute care usage rates and hospital quality measures such as mortality rates, complications, readmissions and lengths of stay.

In addition, hospitals that referred patients to inpatient facilities most often were likelier to readmit patients within 30 days (24.1 percent) versus those who referred patients to inpatient facilities least often (21.2 percent). The study did not find a similar correlation between referrals to home health care and hospital readmission.

Source: Newswise
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