Full dates (day, month, year) should be used in population-based cancer survival studies.

Woods, LM; Rachet, B; Ellis, L; Coleman, MP; (2012) Full dates (day, month, year) should be used in population-based cancer survival studies. International journal of cancer Journal international du cancer, 131 (7). E1120-4. ISSN 0020-7136 DOI: https://doi.org/10.1002/ijc.27545

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: Accurate survival estimates are essential for monitoring cancer survival trends, for health care planning and for resource allocation. To obtain precise estimates of survival, full dates (day, month and year) rather than partial dates (month and year) are required. In some jurisdictions, however, cancer registries are constrained from providing full dates on the grounds of confidentiality. The bias resulting from the use of partial dates in the estimation and comparison of survival makes it impossible to determine precisely the differences in the risk of death from cancer between population groups or in successive calendar periods. Important operational arguments also exist against the use of incomplete dates for survival analysis, including increased workload for cancer registry staff and the introduction of avoidable complexity for quality control of survival data. Cancer survival is one of the most widely known outputs produced by population-based cancer registries, and it is a crucial metric for the comparative effectiveness of health services. The bodies that set data access guidelines must take a more balanced view of the risks and benefits of using full dates for the estimation of cancer survival.<br/>

Item Type: Article
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Non-Communicable Disease Epidemiology
Research Centre: Cancer Survival Group
Centre for Global Non-Communicable Diseases (NCDs)
Centre for Statistical Methodology
PubMed ID: 22438030
Web of Science ID: 306915700007
URI: http://researchonline.lshtm.ac.uk/id/eprint/20688


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