Key result
A search strategy combining a Read code for MI and a hospital record of MI identified patients with prior myocardial infarction with 100% sensitivity and specificity and a yield of 1 in 1.11.
Why the study?
What is the optimal search strategy to identify patients with a history of myocardial infarction from general practice records?
Cross-Sectional (n=5,061)
Yes
What is the optimal search strategy to identify patients with a history of myocardial infarction from general practice records?
Absolute Event Rate: 100% vs 95%
Patients with a history of MI can be accurately identified in general practice records using a combination of Read codes and hospitalization records, facilitating secondary prevention efforts.
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May support secondary prevention via accurate prior MI identification in primary care records; leaves open validation in larger diverse cohorts.
Peter T. Donnan (2003) conducted a cross-sectional in Myocardial infarction (n=5,061). Combination of a Read code for MI and a record of hospitalization for an MI vs. Read code for ischaemic heart disease (IHD) was evaluated on Sensitivity, specificity, positive predictive value (PPV) and yield for detecting a true case of MI. A search strategy combining a Read code for MI and a hospital record of MI identified patients with prior myocardial infarction with 100% sensitivity and specificity and a yield of 1 in 1.11.
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