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How accurate are Scottish cancer registration data?
D Brewster1, J Crichton, C Muir
1Scottish Cancer Intelligence Unit, Information & Statistics Division of the Common Services Agency for the National Health Service in Scotland, Edinburgh, UK.
British Journal of Cancer
|November 1, 1994
Summary
Scottish cancer registration data accuracy was assessed. Most data showed high accuracy, with serious discrepancies in only 2.8% of cases, comparing favorably with other registries.
Area of Science:
- Epidemiology
- Public Health
- Cancer Research
Background:
- Cancer registries are crucial for epidemiological studies and cancer control.
- Accurate cancer registration is essential for reliable health statistics and research.
- Previous assessments of cancer registry data quality have varied.
Purpose of the Study:
- To evaluate the accuracy of Scottish cancer registration data for the year 1990.
- To identify specific areas of discrepancy in cancer registration.
- To compare the accuracy of Scottish cancer data with international standards.
Main Methods:
- A random sample of 2,200 cancer registrations from 1990 was selected.
- Medical records were reviewed for 2,021 (92%) of the selected registrations.
- Registration details were reabstracted and compared against registry data.
Main Results:
- Minor discrepancies in identifying information occurred in 3.5% of cases.
- Discrepancy rates varied by data item, with postcode (7.1%) and morphology codes (14.5%) showing higher rates.
- Serious discrepancies were identified in 2.8% of all cases reviewed.
Conclusions:
- Scottish cancer registration data demonstrate a high level of accuracy.
- The data quality compares favorably with other national cancer registries.
- The findings support the continued use of Scottish cancer registration data for research and public health initiatives.