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A study of the implicit criteria used in diagnosing chest pain
Insights
Physicians
Area of Science:
- Cardiology
- Medical Decision Making
Background:
- Defining chest pain syndromes like typical and atypical angina remains challenging.
- Previous studies lack clear criteria for classifying these conditions.
Purpose of the Study:
- To identify implicit physician criteria for classifying patients with chest pain.
- To develop a decision rule for defining anginal pain syndromes.
Main Methods:
- Five internists reviewed 190 patient histories for coronary artery disease risk.
- Logistic discriminant analysis was used to create a classification rule.
Main Results:
- The developed rule classified patients into high-risk (0.83 CAD prevalence) and low-risk (0.57 CAD prevalence) groups.
- These prevalence rates align with findings from prior large-scale studies on typical and atypical angina.
Conclusions:
- A linear model effectively represents physicians' decision-making processes for anginal syndromes.
- This model provides defined criteria for classifying anginal pain in clinical settings.
Abstract:
Although previous studies have reported the prevalence of coronary artery disease among patients with typical and atypical angina, criteria for the definition of these chest pain syndromes have not been well described. We studied the implicit criteria used by physicians to classify patients with chest pain. Five internists reviewed the histories of 190 subjects admitted to the hospital for elective coronary arteriography and rated each history as indicating either high or low risk of coronary disease. We applied logistic discriminant analysis to these ratings to create a decision rule for the classification of patients with anginal syndromes. The prevalence of confirmed coronary artery disease in subjects classified by the rule as at high risk was 0.83; the prevalence was 0.57 in subjects classified as at low risk. These prevalences are similar to those found for typical and atypical angina in previous large studies. We conclude that this linear model represents the physicians' decisions and provides criteria for defining anginal pain syndromes in certain settings.