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Survival of patients with colorectal peritoneal metastases is affected by treatment disparities among hospitals of diagnosis : A nationwide population-based study

Rovers, Koen P ; Simkens, Geert A ; Vissers, Pauline A ; Lemmens, Valery E ; Verwaal, Victor J LU ; Bremers, Andre J ; Wiezer, Marinus J ; Burger, Jacobus W ; Hemmer, Patrick H and Boot, Henk , et al. (2017) In European Journal of Cancer 75. p.132-140
Abstract

BACKGROUND: In the Netherlands, surgery for peritoneal metastases of colorectal cancer (PMCRC) is centralised, whereas PMCRC is diagnosed in all hospitals. This study assessed whether hospital of diagnosis affects treatment selection and overall survival (OS).

METHODS: Between 2005 and 2015, all patients with synchronous PMCRC without systemic metastases were selected from the Netherlands Cancer Registry. Treatment was classified as cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS/HIPEC), systemic therapy or other/no treatment. Hospitals of diagnosis were classified as: (1) non-teaching or academic/teaching hospital and (2) HIPEC centre or referring hospital. Referring hospitals were further classified... (More)

BACKGROUND: In the Netherlands, surgery for peritoneal metastases of colorectal cancer (PMCRC) is centralised, whereas PMCRC is diagnosed in all hospitals. This study assessed whether hospital of diagnosis affects treatment selection and overall survival (OS).

METHODS: Between 2005 and 2015, all patients with synchronous PMCRC without systemic metastases were selected from the Netherlands Cancer Registry. Treatment was classified as cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS/HIPEC), systemic therapy or other/no treatment. Hospitals of diagnosis were classified as: (1) non-teaching or academic/teaching hospital and (2) HIPEC centre or referring hospital. Referring hospitals were further classified based on the frequency of CRS/HIPEC as high-, medium- or low-frequency hospital. Multivariable regression analyses were used to assess the independent influence of hospital categories on the likelihood of CRS/HIPEC and OS.

RESULTS: A total of 2661 patients, diagnosed in 89 hospitals, were included. At individual hospital level, CRS/HIPEC and systemic therapy ranged from 0% to 50% and 6% to 67%, respectively. Hospital of diagnosis influenced the likelihood of CRS/HIPEC: 33% versus 13% for HIPEC centres versus referring hospitals (odds ratio (OR) 3.66 [2.40-5.58]) and 11% versus 17% for non-teaching hospitals versus academic/teaching hospitals (OR 0.60 [0.47-0.77]). Hospital of diagnosis affected median OS: 14.1 versus 9.6 months for HIPEC centres versus referring hospitals (hazard ratio (HR) 0.82 [0.67-0.99]) and 8.7 versus 11.5 months for non-teaching hospitals versus academic/teaching hospitals (HR 1.15 [1.06-1.26]). Compared with diagnosis in medium-frequency referring hospitals, median OS was increased in high-frequency referring hospitals (12.6 months, HR 0.82 [0.73-0.91]) and reduced in low-frequency referring hospitals (8.1 months, HR 1.12 [1.01-1.24]).

CONCLUSION: Treatment disparities among hospitals of diagnosis and their impact on survival indicate suboptimal treatment selection for PMCRC.

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type
Contribution to journal
publication status
published
keywords
Adult, Aged, Cohort Studies, Colonic Neoplasms, Female, Healthcare Disparities/statistics & numerical data, Hospitalization/statistics & numerical data, Hospitals/statistics & numerical data, Humans, Male, Middle Aged, Netherlands/epidemiology, Peritoneal Neoplasms/mortality, Rectal Neoplasms, Socioeconomic Factors
in
European Journal of Cancer
volume
75
pages
132 - 140
publisher
Elsevier
external identifiers
  • scopus:85013809247
  • pmid:28222307
ISSN
0959-8049
DOI
10.1016/j.ejca.2016.12.034
language
English
LU publication?
no
additional info
Copyright © 2017 Elsevier Ltd. All rights reserved.
id
b6e26d9a-1a76-4ad3-b75b-e89f6254f8ce
date added to LUP
2022-04-04 17:15:54
date last changed
2024-04-08 11:36:43
@article{b6e26d9a-1a76-4ad3-b75b-e89f6254f8ce,
  abstract     = {{<p>BACKGROUND: In the Netherlands, surgery for peritoneal metastases of colorectal cancer (PMCRC) is centralised, whereas PMCRC is diagnosed in all hospitals. This study assessed whether hospital of diagnosis affects treatment selection and overall survival (OS).</p><p>METHODS: Between 2005 and 2015, all patients with synchronous PMCRC without systemic metastases were selected from the Netherlands Cancer Registry. Treatment was classified as cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS/HIPEC), systemic therapy or other/no treatment. Hospitals of diagnosis were classified as: (1) non-teaching or academic/teaching hospital and (2) HIPEC centre or referring hospital. Referring hospitals were further classified based on the frequency of CRS/HIPEC as high-, medium- or low-frequency hospital. Multivariable regression analyses were used to assess the independent influence of hospital categories on the likelihood of CRS/HIPEC and OS.</p><p>RESULTS: A total of 2661 patients, diagnosed in 89 hospitals, were included. At individual hospital level, CRS/HIPEC and systemic therapy ranged from 0% to 50% and 6% to 67%, respectively. Hospital of diagnosis influenced the likelihood of CRS/HIPEC: 33% versus 13% for HIPEC centres versus referring hospitals (odds ratio (OR) 3.66 [2.40-5.58]) and 11% versus 17% for non-teaching hospitals versus academic/teaching hospitals (OR 0.60 [0.47-0.77]). Hospital of diagnosis affected median OS: 14.1 versus 9.6 months for HIPEC centres versus referring hospitals (hazard ratio (HR) 0.82 [0.67-0.99]) and 8.7 versus 11.5 months for non-teaching hospitals versus academic/teaching hospitals (HR 1.15 [1.06-1.26]). Compared with diagnosis in medium-frequency referring hospitals, median OS was increased in high-frequency referring hospitals (12.6 months, HR 0.82 [0.73-0.91]) and reduced in low-frequency referring hospitals (8.1 months, HR 1.12 [1.01-1.24]).</p><p>CONCLUSION: Treatment disparities among hospitals of diagnosis and their impact on survival indicate suboptimal treatment selection for PMCRC.</p>}},
  author       = {{Rovers, Koen P and Simkens, Geert A and Vissers, Pauline A and Lemmens, Valery E and Verwaal, Victor J and Bremers, Andre J and Wiezer, Marinus J and Burger, Jacobus W and Hemmer, Patrick H and Boot, Henk and van Grevenstein, Wilhelmina M and Meijerink, Wilhelmus J and Aalbers, Arend G and Punt, Cornelis J and Tanis, Pieter J and de Hingh, Ignace H}},
  issn         = {{0959-8049}},
  keywords     = {{Adult; Aged; Cohort Studies; Colonic Neoplasms; Female; Healthcare Disparities/statistics & numerical data; Hospitalization/statistics & numerical data; Hospitals/statistics & numerical data; Humans; Male; Middle Aged; Netherlands/epidemiology; Peritoneal Neoplasms/mortality; Rectal Neoplasms; Socioeconomic Factors}},
  language     = {{eng}},
  pages        = {{132--140}},
  publisher    = {{Elsevier}},
  series       = {{European Journal of Cancer}},
  title        = {{Survival of patients with colorectal peritoneal metastases is affected by treatment disparities among hospitals of diagnosis : A nationwide population-based study}},
  url          = {{http://dx.doi.org/10.1016/j.ejca.2016.12.034}},
  doi          = {{10.1016/j.ejca.2016.12.034}},
  volume       = {{75}},
  year         = {{2017}},
}