Table 3.

Correlations between the CAG and OCT data at single time points

CAG data	OCT data	Correlation	p-value
Baseline
Minimal lumen diameter, mm	Fibrous-cap thickness, μm	−0.004	0.971
	Maximum lipid arc, °	0.062	0.545
	Mean lipid arc, °	0.071	0.494
	Lipid length, mm	0.134	0.197
	Lipid index	0.133	0.200
Diameter stenosis, %	Fibrous-cap thickness, μm	−0.169	0.099
	Maximum lipid arc, °	0.209	0.041
	Mean lipid arc, °	0.105	0.308
	Lipid length, mm	0.099	0.341
	Lipid index	0.115	0.265
Lesion length, mm	Fibrous-cap thickness, μm	−0.248	0.014
	Maximum lipid arc, °	−0.303	0.003
	Mean lipid arc, °	0.148	0.149
	Lipid length, mm	0.754	<0.001
	Lipid index	0.648	<0.001
Follow-up
Minimal lumen diameter, mm	Fibrous-cap thickness, μm	−0.076	0.458
	Maximum lipid arc, °	0.086	0.410
	Mean lipid arc, °	0.087	0.433
	Lipid length, mm	0.104	0.334
	Lipid index	0.099	0.372
Diameter stenosis, %	Fibrous-cap thickness, μm	0.018	0.870
	Maximum lipid arc, °	−0.041	0.712
	Mean lipid arc, °	−0.014	0.902
	Lipid length, mm	0.072	0.506
	Lipid index	0.065	0.561
Lesion length, mm	Fibrous-cap thickness, μm	−0.112	0.300
	Maximum lipid arc, °	0.176	0.107
	Mean lipid arc, °	0.125	0.261
	Lipid length, mm	0.639	<0.001
	Lipid index	0.527	<0.001

Correlations between the CAG data and OCT data were analyzed by Pearson or Spearman ranks test. A p-value < 0.05 was considered statistically significant. ° arc of lipid content. ° arc of lipid content.