The association of under-weight and obesity with mortality after hip arthroplasty

Seung Hee Woo, Dong Heon Cha, Eun Cheol Park, Seung Ju Kim

Research output: Contribution to journalArticle

Abstract

Background although many studies have demonstrated the association between body mass index (BMI) and many diseases, there is little evidence of postoperative mortality after hip arthroplasty. The aim of this study was to evaluate the association between BMI and mortality after hip arthroplasty in the older population. Methods a total of 3,627 older patients who underwent hip arthroplasty from 2010 to 2013 were included. We used Cox regression analysis to evaluate the association between BMI and mortality after hip arthroplasty. The hazard ratios (HRs) was calculated from 30 days, 31-365 days, and from the first day of surgery to the day of death during the study. Results under-weight (BMI under 18.5 kg/m 2) is significantly associated with increased mortality (HR:1.423; 95% Confidence Interval (CI): 1.023-1.981) after hip arthroplasty compared to the normal range. However, in the short-term mortality within 30 days after surgery, both under-weight (HR: 2.368; 95%CI: 1.130-4.960) and obesity (25-29.9 kg/m 2, HR: 2.023; 95%CI: 1.008-4.059) are associated with increased mortality. Conclusion our study suggested that under-weight is associated with increased risk of mortality after hip arthroplasty. Further, in a short-term outcome, obesity appear to be associated with increased mortality after hip arthroplasty within 30 days.

Original languageEnglish
Pages (from-to)94-100
Number of pages7
JournalAge and Ageing
Volume48
Issue number1
DOIs
Publication statusPublished - 2019 Jan 1

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Arthroplasty
Hip
Obesity
Weights and Measures
Mortality
Body Mass Index
Confidence Intervals
Ambulatory Surgical Procedures
Cerebral Palsy
Reference Values
Regression Analysis
Population

All Science Journal Classification (ASJC) codes

  • Ageing
  • Geriatrics and Gerontology

Cite this

Woo, Seung Hee ; Cha, Dong Heon ; Park, Eun Cheol ; Kim, Seung Ju. / The association of under-weight and obesity with mortality after hip arthroplasty. In: Age and Ageing. 2019 ; Vol. 48, No. 1. pp. 94-100.
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abstract = "Background although many studies have demonstrated the association between body mass index (BMI) and many diseases, there is little evidence of postoperative mortality after hip arthroplasty. The aim of this study was to evaluate the association between BMI and mortality after hip arthroplasty in the older population. Methods a total of 3,627 older patients who underwent hip arthroplasty from 2010 to 2013 were included. We used Cox regression analysis to evaluate the association between BMI and mortality after hip arthroplasty. The hazard ratios (HRs) was calculated from 30 days, 31-365 days, and from the first day of surgery to the day of death during the study. Results under-weight (BMI under 18.5 kg/m 2) is significantly associated with increased mortality (HR:1.423; 95{\%} Confidence Interval (CI): 1.023-1.981) after hip arthroplasty compared to the normal range. However, in the short-term mortality within 30 days after surgery, both under-weight (HR: 2.368; 95{\%}CI: 1.130-4.960) and obesity (25-29.9 kg/m 2, HR: 2.023; 95{\%}CI: 1.008-4.059) are associated with increased mortality. Conclusion our study suggested that under-weight is associated with increased risk of mortality after hip arthroplasty. Further, in a short-term outcome, obesity appear to be associated with increased mortality after hip arthroplasty within 30 days.",
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The association of under-weight and obesity with mortality after hip arthroplasty. / Woo, Seung Hee; Cha, Dong Heon; Park, Eun Cheol; Kim, Seung Ju.

In: Age and Ageing, Vol. 48, No. 1, 01.01.2019, p. 94-100.

Research output: Contribution to journalArticle

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