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J Gen Intern Med. 2019 Nov 12. doi: 10.1007/s11606-019-05449-x. [Epub ahead of print]

Comparing Outcomes and Costs of Medical Patients Treated at Major Teaching and Non-teaching Hospitals: A National Matched Analysis.

Author information

1
Center for Outcomes Research, , Children's Hospital of Philadelphia, Philadelphia, PA, USA. silber@email.chop.edu.
2
TheDepartment of Pediatrics, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA. silber@email.chop.edu.
3
Department of Anesthesiology and Critical Care, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA. silber@email.chop.edu.
4
Department of Health Care Management, Wharton School, University of Pennsylvania, Philadelphia, PA, USA. silber@email.chop.edu.
5
Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA. silber@email.chop.edu.
6
Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA.
7
Department of Statistics, Wharton School, University of Pennsylvania, Philadelphia, PA, USA.
8
Center for Outcomes Research, , Children's Hospital of Philadelphia, Philadelphia, PA, USA.
9
Department of Anesthesiology and Critical Care, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
10
Department of Anesthesiology, Perioperative, and Pain Medicine, Brigham and Women's Hospital, Boston, MA, USA.
11
Center for Perioperative Outcomes Research and Transformation, University of Pennsylvania, Philadelphia, PA, USA.

Abstract

BACKGROUND:

Teaching hospitals typically pioneer investment in new technology and cultivate workforce characteristics generally associated with better quality, but the value of this extra investment is unclear.

OBJECTIVE:

Compare outcomes and costs between major teaching and non-teaching hospitals by closely matching on patient characteristics.

DESIGN:

Medicare patients at 339 major teaching hospitals (resident-to-bed (RTB) ratios ≥ 0.25); matched patient controls from 2439 non-teaching hospitals (RTB ratios < 0.05).

PARTICIPANTS:

Forty-three thousand nine hundred ninety pairs of patients (one from a major teaching hospital and one from a non-teaching hospital) admitted for acute myocardial infarction (AMI), 84,985 pairs admitted for heart failure (HF), and 74,947 pairs admitted for pneumonia (PNA).

EXPOSURE:

Treatment at major teaching hospitals versus non-teaching hospitals.

MAIN MEASURES:

Thirty-day all-cause mortality, readmissions, ICU utilization, costs, payments, and value expressed as extra cost for a 1% improvement in survival.

KEY RESULTS:

Thirty-day mortality was lower in teaching than non-teaching hospitals (10.7% versus 12.0%, difference = - 1.3%, P < 0.0001). The paired cost difference (teaching - non-teaching) was $273 (P < 0.0001), yielding $211 per 1% mortality improvement. For the quintile of pairs with highest risk on admission, mortality differences were larger (24.6% versus 27.6%, difference = - 3.0%, P < 0.0001), and paired cost difference = $1289 (P < 0.0001), yielding $427 per 1% mortality improvement at 30 days. Readmissions and ICU utilization were lower in teaching hospitals (both P < 0.0001), but length of stay was longer (5.5 versus 5.1 days, P < 0.0001). Finally, individual results for AMI, HF, and PNA showed similar findings as in the combined results.

CONCLUSIONS AND RELEVANCE:

Among Medicare patients admitted for common medical conditions, as admission risk of mortality increased, the absolute mortality benefit of treatment at teaching hospitals also increased, though accompanied by marginally higher cost. Major teaching hospitals appear to return good value for the extra resources used.

KEYWORDS:

Medicare; cost; mortality; teaching hospitals; value

PMID:
31720965
DOI:
10.1007/s11606-019-05449-x

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