Abstract
Purpose
We compare pre- and post-operative health-related quality of life (HRQoL) and length of stay after total hip replacement (THR) in matched German and English patient cohorts to test for differences in admission thresholds, clinical effectiveness and resource utilisation between the healthcare systems.
Methods
German data (n = 271) were collected in a large orthopaedic hospital in Munich, Germany; English data (n = 26,254) were collected as part of the national patient-reported outcome measures programme. HRQoL was measured using the EuroQoL-5D instrument. Propensity score matching was used to construct two patient cohorts that are comparable in terms of preoperative patient characteristics.
Results
Before matching, patients in England showed lower preoperative EQ-5D scores (0.35 vs 0.52, p < 0.001) and experienced a larger improvement in HRQoL (0.43 vs 0.33, p < 0.001) than German patients. Patients in the German cohort were more likely to report no or only moderate problems with mobility and pain preoperatively than their English counterparts. After matching, improvements in HRQoL were comparable (0.32 vs 0.33, p = 0.638); post-operative scores were slightly higher in the German cohort (0.82 vs 0.85, p = 0.585). Length of stay was substantially lower in England than in Germany (4.5 vs 9.0 days, p < 0.001).
Conclusions
Our results highlight differences in preoperative health status between countries, which may arise due to different admission thresholds and access to surgery. In terms of quality of life, THR surgery is equally effective in both countries when performed on similar patients, but hospital stay is shorter in England.
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Acknowledgments
The authors would like to thank Karen Bloor, Richard Cookson, Anne Mason, and Andrew Street as well as participants at the Health Economic seminar series at the Helmholtz Centre Munich for helpful comments and suggestions. Parts of this work were carried out while MV was visiting the Centre for Health Economics, York.
Conflict of interest
The authors do not have financial or other conflicts of interest that might bias this work.
Ethical standards
The German data were collected prospectively as part of a health state evaluation study carried out in a large orthopaedic hospital in Munich, Germany (‘Krankenhaus Barmherzige Brüder München’). Ethics approval for this study was granted by the Ethics committee of Klinikum rechts der Isar, Technical University Munich. The observational study was in accordance with the Helsinki Declaration of 1975, as revised in 2000. All patients gave their informed consent prior to their inclusion in the study. English HRQoL data were collected retrospectively as part of the routine national PROM survey and linked to routine inpatient data from the Hospital Episode Statistics dataset. No further ethics approval was required for secondary data analysis, and no patient-identifiable data were available. Data collection protocols were similar in both countries and followed guidance set out by the Department of Health in England.
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Vogl, M., Leidl, R., Plötz, W. et al. Comparison of pre- and post-operative health-related quality of life and length of stay after primary total hip replacement in matched English and German patient cohorts. Qual Life Res 24, 513–520 (2015). https://doi.org/10.1007/s11136-014-0782-9
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DOI: https://doi.org/10.1007/s11136-014-0782-9