Do Reduced Hospital Mortality Rates Lead to Increased Utilization of Inpatient Emergency Care? A Population-Based Cohort Study

Mauro Laudicella, Stephen Martin, Paolo Li Donni, Peter C Smith

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstrakt

OBJECTIVES: To measure the impact of the improvement in hospital survival rates on patients' subsequent utilization of unplanned (emergency) admissions.

DATA SOURCES/STUDY SETTING: Unplanned admissions occurring in all acute hospitals of the National Health Service in England between 2000 and 2009, including 286,027 hip fractures, 375,880 AMI, 387,761 strokes, and 9,966,246 any cause admissions.

STUDY DESIGN: Population-based retrospective cohort study. Unplanned admissions experienced by patients within 28 days, 1 year, and 2 years of discharge from the index admission are modeled as a function of hospital risk-adjusted survival rates using patient-level probit and negative binomial models. Identification is also supported by an instrumental variable approach and placebo test.

PRINCIPAL FINDINGS: The improvement in hospital survival rates that occurred between 2000 and 2009 explains 37.3 percent of the total increment in unplanned admissions observed over the same period. One extra patient surviving increases the expected number of subsequent admissions occurring within 1 year from discharge by 1.9 admissions for every 100 index admissions (0.019 per admission, 95% CI, 0.016-0.022). Similar results in hip fracture (0.006[0.004-0.007]), AMI (0.006[0.04-0.007]), and stroke (0.004(0.003-0.005)).

CONCLUSIONS: The success of hospitals in improving survival from unplanned admissions can be an important contributory factor to the increase in subsequent admissions.

OriginalsprogEngelsk
TidsskriftHealth Services Research
Vol/bind53
Udgave nummer4
Sider (fra-til)2324-2345
ISSN0017-9124
DOI
StatusUdgivet - aug. 2018

Bibliografisk note

© 2017 The Authors. Health Services Research published by Wiley Periodicals, Inc. on behalf of Health Research and Educational Trust.

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