Geographic variations in stage at diagnosis and survival for colorectal cancer in Australia: a systematic review

Crawford-Williams, Fiona and March, Sonja and Goodwin, Belinda C. and Ireland, Michael J. and Chambers, Suzanne K. and Aitken, Joanne F. and Dunn, Jeff (2019) Geographic variations in stage at diagnosis and survival for colorectal cancer in Australia: a systematic review. European Journal of Cancer Care, 28 (3). e13072. ISSN 0961-5423


Abstract

Introduction
Australia has one of the highest incidence rates of colorectal cancer (CRC) in the world. Residents in rural areas of Australia experience disadvantage in health care and outcomes. This review investigates whether patients with CRC in rural areas demonstrate poorer survival and more advanced stages of disease at diagnosis.

Methods
Systematic review of peer‐reviewed articles and grey literature. Studies were included if they provided data on survival or stage of disease at diagnosis across multiple geographical locations; focused on CRC patients; and were conducted in Australia.

Results
Twenty‐six articles met inclusion criteria. Twenty‐three studies examined survival, while five studies investigated stage at diagnosis. The evidence suggests that non‐metropolitan patients are less likely to survive CRC for five years compared to patients living in metropolitan areas, yet there was limited evidence to suggest geographical disparity in stage of diagnosis.

Conclusions
While five‐year survival disparities are apparent, these patterns appear to vary as a function of specific region and health jurisdiction, cancer type and year/s of data collection. Future research should examine current data using consistent and robust methods of reporting survival and classifying geographical location. The impact of population‐level screening programmes on survival and stage at diagnosis also needs to be thoroughly explored.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version, in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Historic - Institute for Resilient Regions - Centre for Health, Informatics and Economic Research (1 Aug 2018 - 31 Mar 2020)
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Psychology and Counselling (1 Jan 2015 -)
Date Deposited: 30 Jan 2020 03:30
Last Modified: 11 Feb 2020 00:12
Uncontrolled Keywords: cancer screening, cancer survival, colorectal cancer, health disparities, population health, rural health, systematic review
Fields of Research : 11 Medical and Health Sciences > 1117 Public Health and Health Services > 111716 Preventive Medicine
11 Medical and Health Sciences > 1117 Public Health and Health Services > 111712 Health Promotion
11 Medical and Health Sciences > 1112 Oncology and Carcinogenesis > 111202 Cancer Diagnosis
Identification Number or DOI: 10.1111/ecc.13072
URI: http://eprints.usq.edu.au/id/eprint/37724

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