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[Standardised in-hospital mortality decreasing over time]
Janneke Ploemacher1, Abby Z Israëls, D J Jan van der Laan
1Centraal Bureau voor de Statistiek, Afd. Gezondheid en Zorg, Den Haag, the Netherlands.
Nederlands Tijdschrift Voor Geneeskunde
|April 26, 2013
Summary
In-hospital mortality significantly decreased from 2005 to 2010, indicating improved patient safety and care quality. This trend varied across diagnosis groups, with some showing greater reductions than others.
Area of Science:
- Healthcare quality and patient safety research.
- Public health and epidemiology.
- Health services research.
Background:
- In-hospital mortality rates are a key indicator of healthcare quality.
- Understanding trends in mortality is crucial for evaluating healthcare system performance.
Purpose of the Study:
- To analyze changes in standardized in-hospital mortality rates between 2005 and 2010.
- To identify variations in mortality trends across different diagnosis groups.
Main Methods:
- A retrospective, descriptive study utilizing data from the National Medical Registration (LMR).
- Calculation of a time-series of standardized in-hospital mortality rates.
- Development of logistic regression models to predict mortality and calculate the Time-Series Standardised Hospital Mortality Ratio (TSHMR).
Main Results:
- A significant year-on-year decrease in TSHMR was observed from 2005 to 2010.
- Standardized in-hospital mortality decreased across all adult age categories (≥ 25 years).
- The sharpest TSHMR declines were in 'gastrointestinal haemorrhage' and 'deficiencies and other anaemias' groups.
Conclusions:
- The study demonstrates a substantial decrease in the risk of in-hospital death between 2005 and 2010.
- The magnitude of TSHMR reduction varied by diagnosis group.
- Potential contributing factors include improvements in care quality and changes in hospital admission/discharge policies.
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