Key result
Type A behavior lacks four of the eight recognized criteria for causal inference, meaning its causal relationship with coronary heart disease remains unproven.
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Design
Review
Type A behavior should not guide CHD risk assessment or interventions; leaves open its causal role pending stronger evidence.
Summary When we look for the criteria for causation of Type A behaviour for coronary heart disease, we lack the reproducibility, the predictability to a certain extent, a pathogenic mechanism and an animal model, all four of the eight recognized criteria for causal inference. The debate therefore is still wide open.
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Kittel et al. (1986) studied this question. Type A behavior lacks four of the eight recognized criteria for causal inference, meaning its causal relationship with coronary heart disease remains unproven.
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