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High hospital research participation and improved colorectal cancer survival outcomes: a population-based study

Downing, A; Morris, EJ; Corrigan, N; Sebag-Montefiore, D; Finan, PJ; Thomas, JD; Chapman, M; ... Selby, P; + view all (2017) High hospital research participation and improved colorectal cancer survival outcomes: a population-based study. Gut , 66 (1) pp. 89-96. 10.1136/gutjnl-2015-311308. Green open access

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Abstract

OBJECTIVE: In 2001, the National Institute for Health Research Cancer Research Network (NCRN) was established, leading to a rapid increase in clinical research activity across the English NHS. Using colorectal cancer (CRC) as an example, we test the hypothesis that high, sustained hospital-level participation in interventional clinical trials improves outcomes for all patients with CRC managed in those research-intensive hospitals. DESIGN: Data for patients diagnosed with CRC in England in 2001-2008 (n=209 968) were linked with data on accrual to NCRN CRC studies (n=30 998). Hospital Trusts were categorised by the proportion of patients accrued to interventional studies annually. Multivariable models investigated the relationship between 30-day postoperative mortality and 5-year survival and the level and duration of study participation. RESULTS: Most of the Trusts achieving high participation were district general hospitals and the effects were not limited to cancer 'centres of excellence', although such centres do make substantial contributions. Patients treated in Trusts with high research participation (≥16%) in their year of diagnosis had lower postoperative mortality (p<0.001) and improved survival (p<0.001) after adjustment for casemix and hospital-level variables. The effects increased with sustained research participation, with a reduction in postoperative mortality of 1.5% (6.5%-5%, p<2.2×10(-6)) and an improvement in survival (p<10(-19); 5-year difference: 3.8% (41.0%-44.8%)) comparing high participation for ≥4 years with 0 years. CONCLUSIONS: There is a strong independent association between survival and participation in interventional clinical studies for all patients with CRC treated in the hospital study participants. Improvement precedes and increases with the level and years of sustained participation.

Type: Article
Title: High hospital research participation and improved colorectal cancer survival outcomes: a population-based study
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1136/gutjnl-2015-311308
Publisher version: http://dx.doi.org/10.1136/gutjnl-2015-311308
Language: English
Additional information: This is an Open Access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY 4.0) license, which permits others to distribute, remix, adapt and build upon this work, for commercial use, provided the original work is properly cited. See: http://creativecommons.org/licenses/by/4.0/
Keywords: Clinical Trials, Colorectal Cancer, Health Service Research
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Inst of Clinical Trials and Methodology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Inst of Clinical Trials and Methodology > MRC Clinical Trials Unit at UCL
URI: https://discovery.ucl.ac.uk/id/eprint/1528754
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