Why the study?
Do females have smaller coronary artery diameters than males independent of body size and heart weight?
Do females have smaller coronary artery diameters than males independent of body size and heart weight?
Females have significantly smaller coronary artery diameters than males, independent of body surface area and heart weight, which may contribute to sex differences in coronary outcomes.
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Smaller female coronary diameters may contribute to outcome disparities; hypothesis-generating and should not yet change reference values or practice.
Ilayperuma et al. (2011) studied this question.