Influence of Body Mass Index on Long-Term Outcome in Patients with Rectal Cancer—A Single Centre Experience

Background: Excess bodyweight is known to influence the risk of colorectal cancer; however, little evidence exists for the influence of the body mass index (BMI) on the long-term outcome of patients with rectal cancer. Methods: We assessed the impact of the BMI on the risk of local recurrence, dista...

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Main Authors: Maximilian Kalb, Melanie C. Langheinrich, Susanne Merkel, Christian Krautz, Maximilian Brunner, Alan Bénard, Klaus Weber, Christian Pilarsky, Robert Grützmann, Georg F. Weber
Format: Article
Language:English
Published: MDPI AG 2019-04-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/11/5/609
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author Maximilian Kalb
Melanie C. Langheinrich
Susanne Merkel
Christian Krautz
Maximilian Brunner
Alan Bénard
Klaus Weber
Christian Pilarsky
Robert Grützmann
Georg F. Weber
author_facet Maximilian Kalb
Melanie C. Langheinrich
Susanne Merkel
Christian Krautz
Maximilian Brunner
Alan Bénard
Klaus Weber
Christian Pilarsky
Robert Grützmann
Georg F. Weber
author_sort Maximilian Kalb
collection DOAJ
description Background: Excess bodyweight is known to influence the risk of colorectal cancer; however, little evidence exists for the influence of the body mass index (BMI) on the long-term outcome of patients with rectal cancer. Methods: We assessed the impact of the BMI on the risk of local recurrence, distant metastasis and overall&#8212;survival in 612 patients between 2003 and 2010 after rectal cancer diagnosis and treatment at the University Hospital Erlangen. A Cox-regression model was used to estimate the hazard ratio and multivariate risk of mortality and distant-metastasis. Median follow up-time was 58 months. Results: Patients with obesity class II or higher (BMI &#8805; 35 kg/m<sup>2</sup>, <i>n</i> = 25) and patients with underweight (BMI &lt; 18.5 kg/m<sup>2</sup>, <i>n</i> = 5) had reduced overall survival (hazard ratio (HR) = 1.6; 95% confidence interval (CI) 0.9&#8722;2.7) as well as higher rates of distant metastases (hazard ratio HR = 1.7; 95% CI 0.9&#8722;3.3) as compared to patients with normal bodyweight (18.5 &#8804; BMI &lt; 25 kg/m<sup>2</sup>, <i>n</i> = 209), overweight (25 &#8804; BMI &lt;30 kg/m<sup>2</sup>, <i>n</i> = 257) or obesity class I (30 &#8804; BMI &lt;35 kg/m<sup>2</sup>, <i>n</i> = 102). There were no significant differences for local recurrence. Conclusions: Underweight and excess bodyweight are associated with lower overall survival and higher rates of distant metastasis in patients with rectal cancer.
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spelling doaj.art-528c49feb5224d6f8bb68a9a453dda8c2023-08-02T03:41:47ZengMDPI AGCancers2072-66942019-04-0111560910.3390/cancers11050609cancers11050609Influence of Body Mass Index on Long-Term Outcome in Patients with Rectal Cancer—A Single Centre ExperienceMaximilian Kalb0Melanie C. Langheinrich1Susanne Merkel2Christian Krautz3Maximilian Brunner4Alan Bénard5Klaus Weber6Christian Pilarsky7Robert Grützmann8Georg F. Weber9Department of Surgery, Erlangen University Hospital, Krankenhausstraße 12, 91054 Erlangen, GermanyDepartment of Surgery, Erlangen University Hospital, Krankenhausstraße 12, 91054 Erlangen, GermanyDepartment of Surgery, Erlangen University Hospital, Krankenhausstraße 12, 91054 Erlangen, GermanyDepartment of Surgery, Erlangen University Hospital, Krankenhausstraße 12, 91054 Erlangen, GermanyDepartment of Surgery, Erlangen University Hospital, Krankenhausstraße 12, 91054 Erlangen, GermanyDepartment of Surgery, Erlangen University Hospital, Krankenhausstraße 12, 91054 Erlangen, GermanyDepartment of Surgery, Erlangen University Hospital, Krankenhausstraße 12, 91054 Erlangen, GermanyDepartment of Surgery, Erlangen University Hospital, Krankenhausstraße 12, 91054 Erlangen, GermanyDepartment of Surgery, Erlangen University Hospital, Krankenhausstraße 12, 91054 Erlangen, GermanyDepartment of Surgery, Erlangen University Hospital, Krankenhausstraße 12, 91054 Erlangen, GermanyBackground: Excess bodyweight is known to influence the risk of colorectal cancer; however, little evidence exists for the influence of the body mass index (BMI) on the long-term outcome of patients with rectal cancer. Methods: We assessed the impact of the BMI on the risk of local recurrence, distant metastasis and overall&#8212;survival in 612 patients between 2003 and 2010 after rectal cancer diagnosis and treatment at the University Hospital Erlangen. A Cox-regression model was used to estimate the hazard ratio and multivariate risk of mortality and distant-metastasis. Median follow up-time was 58 months. Results: Patients with obesity class II or higher (BMI &#8805; 35 kg/m<sup>2</sup>, <i>n</i> = 25) and patients with underweight (BMI &lt; 18.5 kg/m<sup>2</sup>, <i>n</i> = 5) had reduced overall survival (hazard ratio (HR) = 1.6; 95% confidence interval (CI) 0.9&#8722;2.7) as well as higher rates of distant metastases (hazard ratio HR = 1.7; 95% CI 0.9&#8722;3.3) as compared to patients with normal bodyweight (18.5 &#8804; BMI &lt; 25 kg/m<sup>2</sup>, <i>n</i> = 209), overweight (25 &#8804; BMI &lt;30 kg/m<sup>2</sup>, <i>n</i> = 257) or obesity class I (30 &#8804; BMI &lt;35 kg/m<sup>2</sup>, <i>n</i> = 102). There were no significant differences for local recurrence. Conclusions: Underweight and excess bodyweight are associated with lower overall survival and higher rates of distant metastasis in patients with rectal cancer.https://www.mdpi.com/2072-6694/11/5/609body mass indexrectal canceroverall survivaldistant metastasis
spellingShingle Maximilian Kalb
Melanie C. Langheinrich
Susanne Merkel
Christian Krautz
Maximilian Brunner
Alan Bénard
Klaus Weber
Christian Pilarsky
Robert Grützmann
Georg F. Weber
Influence of Body Mass Index on Long-Term Outcome in Patients with Rectal Cancer—A Single Centre Experience
Cancers
body mass index
rectal cancer
overall survival
distant metastasis
title Influence of Body Mass Index on Long-Term Outcome in Patients with Rectal Cancer—A Single Centre Experience
title_full Influence of Body Mass Index on Long-Term Outcome in Patients with Rectal Cancer—A Single Centre Experience
title_fullStr Influence of Body Mass Index on Long-Term Outcome in Patients with Rectal Cancer—A Single Centre Experience
title_full_unstemmed Influence of Body Mass Index on Long-Term Outcome in Patients with Rectal Cancer—A Single Centre Experience
title_short Influence of Body Mass Index on Long-Term Outcome in Patients with Rectal Cancer—A Single Centre Experience
title_sort influence of body mass index on long term outcome in patients with rectal cancer a single centre experience
topic body mass index
rectal cancer
overall survival
distant metastasis
url https://www.mdpi.com/2072-6694/11/5/609
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