Comorbidity does not predict long-term mortality after total hip arthroplasty

Background and purpose — In-hospital death following total hip arthroplasty (THA) is related to comorbidity. The long-term effect of comorbidity on all-cause mortality is, however, unknown for this group of patients and it was investigated in this study. Patients and methods — We used data from the...

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Main Authors: Erik Bülow, Ola Rolfson, Peter Cnudde, Cecilia Rogmark, Göran Garellick, Szilárd Nemes
Format: Article
Language:English
Published: Medical Journals Sweden 2017-09-01
Series:Acta Orthopaedica
Online Access:http://dx.doi.org/10.1080/17453674.2017.1341243
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author Erik Bülow
Ola Rolfson
Peter Cnudde
Cecilia Rogmark
Göran Garellick
Szilárd Nemes
author_facet Erik Bülow
Ola Rolfson
Peter Cnudde
Cecilia Rogmark
Göran Garellick
Szilárd Nemes
author_sort Erik Bülow
collection DOAJ
description Background and purpose — In-hospital death following total hip arthroplasty (THA) is related to comorbidity. The long-term effect of comorbidity on all-cause mortality is, however, unknown for this group of patients and it was investigated in this study. Patients and methods — We used data from the Swedish Hip Arthroplasty Register, linked to the National Patient Register from the National Board of Health and Welfare, for patients operated on with THA in 1999–2012. We identified 120,836 THAs that could be included in the study. We evaluated the predictive power of the Charlson and Elixhauser comorbidity indices on mortality, using concordance indices calculated after 5, 8, and 14 years after THA. Results — All comorbidity indices performed poorly as predictors, in fact worse than a base model with age and sex only. Elixhauser was, however, the least bad choice and it predicted mortality with concordance indices 0.59, 0.58, and 0.56 for 5, 8, and 14 years after THA. Interpretation — Comorbidity indices are poor predictors of long-term mortality after THA.
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spelling doaj.art-cbe9404e5fc24c25a2ac0c065ae5991e2022-12-22T04:05:57ZengMedical Journals SwedenActa Orthopaedica1745-36741745-36822017-09-0188547247710.1080/17453674.2017.13412431341243Comorbidity does not predict long-term mortality after total hip arthroplastyErik Bülow0Ola Rolfson1Peter Cnudde2Cecilia Rogmark3Göran Garellick4Szilárd Nemes5Swedish Hip Arthroplasty Register, Center for RegistersSwedish Hip Arthroplasty Register, Center for RegistersSwedish Hip Arthroplasty Register, Center for RegistersSwedish Hip Arthroplasty Register, Center for RegistersSwedish Hip Arthroplasty Register, Center for RegistersSwedish Hip Arthroplasty Register, Center for RegistersBackground and purpose — In-hospital death following total hip arthroplasty (THA) is related to comorbidity. The long-term effect of comorbidity on all-cause mortality is, however, unknown for this group of patients and it was investigated in this study. Patients and methods — We used data from the Swedish Hip Arthroplasty Register, linked to the National Patient Register from the National Board of Health and Welfare, for patients operated on with THA in 1999–2012. We identified 120,836 THAs that could be included in the study. We evaluated the predictive power of the Charlson and Elixhauser comorbidity indices on mortality, using concordance indices calculated after 5, 8, and 14 years after THA. Results — All comorbidity indices performed poorly as predictors, in fact worse than a base model with age and sex only. Elixhauser was, however, the least bad choice and it predicted mortality with concordance indices 0.59, 0.58, and 0.56 for 5, 8, and 14 years after THA. Interpretation — Comorbidity indices are poor predictors of long-term mortality after THA.http://dx.doi.org/10.1080/17453674.2017.1341243
spellingShingle Erik Bülow
Ola Rolfson
Peter Cnudde
Cecilia Rogmark
Göran Garellick
Szilárd Nemes
Comorbidity does not predict long-term mortality after total hip arthroplasty
Acta Orthopaedica
title Comorbidity does not predict long-term mortality after total hip arthroplasty
title_full Comorbidity does not predict long-term mortality after total hip arthroplasty
title_fullStr Comorbidity does not predict long-term mortality after total hip arthroplasty
title_full_unstemmed Comorbidity does not predict long-term mortality after total hip arthroplasty
title_short Comorbidity does not predict long-term mortality after total hip arthroplasty
title_sort comorbidity does not predict long term mortality after total hip arthroplasty
url http://dx.doi.org/10.1080/17453674.2017.1341243
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AT olarolfson comorbiditydoesnotpredictlongtermmortalityaftertotalhiparthroplasty
AT petercnudde comorbiditydoesnotpredictlongtermmortalityaftertotalhiparthroplasty
AT ceciliarogmark comorbiditydoesnotpredictlongtermmortalityaftertotalhiparthroplasty
AT gorangarellick comorbiditydoesnotpredictlongtermmortalityaftertotalhiparthroplasty
AT szilardnemes comorbiditydoesnotpredictlongtermmortalityaftertotalhiparthroplasty