Plasma cystatin C and neutrophil gelatinase-associated lipocalin in relation to coronary atherosclerosis on intravascular ultrasound and cardiovascular outcome: Impact of kidney function (ATHEROREMO-IVUS study).

•Patients undergoing coronary angiography were examined.•CysC and NGAL were correlated with IVUS characteristics and 1-year MACE.•If normal kidney function, patients with higher CysC levels had fewer high-risk coronary lesions.•If mild-to-moderate kidney dysfunction, patients with higher CysC levels had higher risk of MACE.•Mild-to-moderate kidney dysfunction modifies the relationship between CysC and CAD.