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Findings suggest that the 30-days following hospital discharge are not the same with regard to what influences outcomes for sick patients.

A study published in the Annals of Internal Medicine findings suggest readmissions in the week after discharge are more preventable and more likely to be caused by factors over which the hospital has direct control than those later in the 30-day window.

“Patients discharged from a hospital are usually recovering from a serious medical condition as well as managing other chronic medical conditions, and they often encounter new logistical challenges adapting to this recovery period,” said Kelly Graham, MD, MPH, Director of Ambulatory Residency Training at BIDMC, Instructor in Medicine at Harvard Medical School and co-author of the study. “Hospitals and outpatient clinics must work together more seamlessly to ensure that patients are equipped to manage these challenges at home.”

"Taken together, the findings suggest that readmissions in the week after discharge are more preventable and more likely to be caused by factors over which the hospital has direct control than those later in the 30-day window."

For their study, Graham and her colleagues examined information on 822 general medicine patients readmitted to 10 academic medical centers in the United States. Overall, 36.2% of early readmissions versus 23.0% of late readmissions were deemed preventable. Hospitals were identified as better locations for preventing early readmissions, whereas outpatient clinics and home were better for preventing late readmissions.

Premature discharge and problems with physician decision-making related to diagnosis and management during the initial hospitalization were likely causes of readmissions in the early period. More likely to be amenable to interventions outside the hospital, later readmissions were most often caused by factors over which the hospital has less direct control, such as monitoring and managing of symptoms after discharge by primary care clinicians, as well as end-of-life issues.

Taken together, the findings suggest that readmissions in the week after discharge are more preventable and more likely to be caused by factors over which the hospital has direct control than those later in the 30-day window. In the current US system, however, unplanned readmissions within the 30 days after hospital discharge are considered uniformly preventable by hospitals, and thus hospitals are punished with financial penalties for these events. 

“Our findings suggest that the 30 days following hospital discharge are not the same with regard to what influences outcomes for sick patients, and that the current model over-simplifies this high-risk time,” said Graham. “One potential unintended consequence of this is that outpatient environments have not been involved in efforts to manage this high-risk timeframe, which results in poorly coordinated care and worse outcomes for our patients.”

Graham noted that interventions to improve outcomes after hospital discharge should engage the ambulatory care system, with attention to improving access to primary care. “We should also be careful not to put too much focus on reducing length of stay in the hospital, which may be a driver of premature discharge and early readmissions,” she said.

Source: Beth Israel Deaconess Medical Center

Top 5 principal diagnoses with the highest 7-day and 30-day readmission rates, 2014

Principal diagnosis at the index stay

Index stays

    7-day readmissions

   30-day readmissions

Rank

Ratea

Rank

Ratea

Total inpatient stays

27,698,101

   -

5.0

-

13.9

Schizophrenia and other psychotic disorders

374,097

   1

9.0

2

22.9

Alcohol-related disorders

340,076

   2

7.5

4

21.5

Congestive heart failure; non-hypertensive

795,709

   3

7.4

1

23.2

Heart valve disorders

117,788

   4

7.3

14

18.4

Hypertension with complications, secondary hypertension

223,396

   5

7.2

6

20.9

a Rate per 100 index inpatient stays

Source: AHRQ

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