This can be caused by effect of glucose metabolism on vascular endothelium or because patients with abnormal glucose metabolism have more diffuse coronary artery disease (CAD) compared to patients with NGM.
Þetta getur annars vegar stafað af áhrifum sykurefnaskipta á starfsemi æðaþels og hins vegar af því að þessir sjúklingar eru með útbreiddari kransæðasjúkdóm.