Table 3.

Comparison between quantitative assessments across categories of percent diameter stenosis by Clinical Interpretation and QCA. Each cell represents the number of lesions in agreement in that category between the 2 methods.

	Pre-PCI stenosis (%) by QCA
Pre-PCI stenosis (%) by Clinical Interpretation	50 to <70	70 to <90	90 to <100	100	Total
50 to <70	2 (0.9)	1 (0.5)	0 (0)	0 (0)	3 (1.4)
70 to <90	50 (23.2)	63 (29.2)	0 (0)	0 (0)	113 (52.3)
90 to <100	6 (2.8)	70 (32.4)	9 (4.2)	2 (0.9)	87 (40.3)
100	0 (0)	0 (0)	1 (0.5)	12 (5.6)	13 (6.0)
Total	58 (26.9)	134 (62.0)	10 (4.6)	14 (6.5)	216* (100)

^*12 lesions not compared due to missing quantitative information on stenosis severity in the clinical record

PCI = Percutaneous Coronary Intervention, QCA = Quantitative Coronary Angiography