Reliability of collecting colorectal cancer stage information from pathology reports and general practitioners in Queensland
Krnjacki, Lauren J., Baade, Peter D., Lynch, Brigid M., & Aitken, Joanne F. (2008) Reliability of collecting colorectal cancer stage information from pathology reports and general practitioners in Queensland. Australian and New Zealand Journal of Public Health, 32(4), p. 378.
Objective: To investigate the reliability of collecting colorectal stage information from pathology reports and general practitioners in Queensland, Australia.----- Methods: A longitudinal study of colorectal cancer survivors conducted in 2003 and 2004 (n=1966, response rate=57%) obtained stage information from clinical specialists (n=1334), general practitioners (GP) (n=1417) and by extracting stage from pathology reports (n=1484). Reliability of stage information was determined by comparing stage from GPs and pathology reports with that reported by the clinical specialists, using a weighted kappa.----- Results: GPs and pathology reports each had a similar level of agreement with clinical specialists, with kappa scores of 0.77 (0.75-0.80) (n=1042) and 0.78 (0.75- 0.81) (n=1152), respectively. Results were similar when restricting to records staged by all three methods (n=847). GPs had similar levels of agreement with clinical specialists within each stage, although pathology reports tended to under-stage patients in Stage D (0.37). Collapsing stage into two categories (A or B, C or D) increased the reliability estimates from the pathology reports to 0.91 (0.88-0.93), but there was little change in GP estimates 0.79 (0.75-0.83).----- Conclusions: Extractions from pathology reports are a valid source of broad stage information for colorectal cancer. Implications: In the absence of clinical stage data, access to pathology records by population-based cancer registries enables a more accurate assessment of survival inequalities in colorectal cancer survival.
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|Item Type:||Journal Article|
|Keywords:||Colorectal cancer survivors, Pathology reports, Stage information, Population-based cancer registries|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > ONCOLOGY AND CARCINOGENESIS (111200)|
|Divisions:||Current > QUT Faculties and Divisions > Faculty of Health|
Current > Schools > School of Public Health & Social Work
|Deposited On:||16 Jun 2009 20:38|
|Last Modified:||29 Feb 2012 23:53|
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