Spherization indices measured by resting SPECT improve risk stratification in patients with ischemia with non-obstructive coronary artery disease (INOCA)

EJNMMI Research

Table 4 NRI and IDI analysis for spherization indices in MACE prediction

	Continuous NRI (95% CI)	P value	Categorized NRI (95% CI)	P value	IDI (95% CI)	P value
Baseline	Baseline	P value	Baseline	P value	Baseline	P value
Baseline + SI	0.148 (− 0.017–0.320)	0.066	0.029 (− 0.065–0.122)	0.546	*0.039 (0.005–0.103)*	*0.026*
Baseline + E2	0.170 (− 0.086–0.303)	0.212	0.031 (− 0.043–0.109)	0.394	0.023 (− 0.001–0.067)	0.093

Bolditalic is to emphasis that the prediction accuracy for MACEs was significantly improved when SI was included in the model in comparison with E2
Baseline include age, coronary artery stenosis, CCB, hemoglobin, PER, TPD and TTPF