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Variation in mortality from ischaemic heart disease between England and Scotland
R Phillips1, P Carson, N Haites
1Department of Cardiology, North Staffordshire Hospital Centre, Stoke-on-Trent.
The Quarterly Journal of Medicine
|May 1, 1987
Summary
Mortality from ischaemic heart disease (IHD) appears higher in North Staffordshire than Grampian. However, differing autopsy rates and data availability significantly impact these findings, questioning the reliability of epidemiological studies.
Area of Science:
- Epidemiology
- Cardiovascular Disease Research
Background:
- Ischaemic heart disease (IHD) mortality rates vary geographically.
- Accurate data collection is crucial for epidemiological comparisons.
Purpose of the Study:
- To compare IHD mortality rates in individuals under 60 between Grampian and North Staffordshire.
- To assess the reliability of epidemiological data based on case ascertainment.
Main Methods:
- Comparative analysis of death certificates and medical records.
- Inclusion of general practitioner and hospital case notes, and autopsy reports.
- Verification of cause of death for ischaemic heart disease.
Main Results:
- North Staffordshire had a higher reported IHD mortality rate than Grampian.
- A significant proportion of Grampian deaths lacked sufficient information for substantiation.
- Discrepancies in autopsy rates and case note availability were noted between the two regions.
Conclusions:
- Reported IHD mortality differences may be exaggerated due to methodological variations.
- The reliability of epidemiological findings is challenged by data quality issues.
- Standardized data collection protocols are essential for accurate health research.
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