Table 5. Delong test, NRI, and IDI results of final models based on the same test dataset (n=80).

Model1	Model2	Z for Delong	P for Delong	NRI	Z for NRI	P for NRI	IDI	Z for IDI	P for IDI
All	HRCT	3.225	0.001	0.384	3.171	0.002	0.380	3.234	0.001
All	Clinic	2.241	0.025	0.212	2.090	0.037	0.252	2.200	0.028
HRCT	Clinic	1.549	0.122	−0.172	−1.124	0.261	−0.127	−0.988	0.323

NRI, net reclassification improvement; IDI, integrated discrimination improvement; HRCT, high-resolution computed tomography.