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The Hospital Standardised Mortality Ratio: a powerful tool for Dutch hospitals to assess their quality of care?

Jarman, B, Pieter, D, Veen, AA, Kool, RB, Aylin, P, Bottle, A, Westert, GP and Jones, S (2009) The Hospital Standardised Mortality Ratio: a powerful tool for Dutch hospitals to assess their quality of care? Quality and Safety in Health Care, 1. pp. 9-13.

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Abstract

AIM OF THE STUDY: To use the hospital standardised mortality ratio (HSMR), as a tool for Dutch hospitals to analyse their death rates by comparing their risk-adjusted mortality with the national average. METHOD: The method uses routine administrative databases that are available nationally in The Netherlands--the National Medical Registration dataset for the years 2005-2007. Diagnostic groups that led to 80% of hospital deaths were included in the analysis. The method adjusts for a number of case-mix factors per diagnostic group determined through a logistic regression modelling process. RESULTS: In The Netherlands, the case-mix factors are primary diagnosis, age, sex, urgency of admission, length of stay, comorbidity (Charlson Index), social deprivation, source of referral and month of admission. The Dutch HSMR model performs well at predicting a patient's risk of death as measured by a c statistic of the receiver operating characteristic curve of 0.91. The ratio of the HSMR of the Dutch hospital with the highest value in 2005-2007 is 2.3 times the HSMR of the hospital with the lowest value. DISCUSSION: Overall hospital HSMRs and mortality at individual diagnostic group level can be monitored using statistical process control charts to give an early warning of possible problems with quality of care. The use of routine data in a standardised and robust model can be of value as a starting point for improvement of Dutch hospital outcomes. HSMRs have been calculated for several other countries.

Item Type: Article
Authors :
AuthorsEmailORCID
Jarman, BUNSPECIFIEDUNSPECIFIED
Pieter, DUNSPECIFIEDUNSPECIFIED
Veen, AAUNSPECIFIEDUNSPECIFIED
Kool, RBUNSPECIFIEDUNSPECIFIED
Aylin, PUNSPECIFIEDUNSPECIFIED
Bottle, AUNSPECIFIEDUNSPECIFIED
Westert, GPUNSPECIFIEDUNSPECIFIED
Jones, SUNSPECIFIEDUNSPECIFIED
Date : 21 September 2009
Identification Number : https://doi.org/10.1136/qshc.2009.032953
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 14:09
Last Modified : 28 Mar 2017 14:09
URI: http://epubs.surrey.ac.uk/id/eprint/722276

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