Table 4.

Diagnostic performance of NRI and IDI between model and CONUT/PNI.

	Continuous NRI (95%CI)		IDI (95%CI)
Training group
model vs. CONUT	0.400 (−0.094–0.648)		0.113 (0.025–0.241)
model vs. PNI	0.310 (0.018–0.554)		0.097 (0.006–0.221)
Internal validation
model vs. CONUT	0.536 (0.036–0.815)		0.271 (0.058–0.436)
model vs. PNI	0.343 (−0.087–0.260)		0.079 (−0.087–0.260)
External validation
model vs. CONUT	0.394 (−0.313–0.646)		0.094 (−0.077–0.227)
model vs. PNI	−0.012 (−0.48–0.534)		0.058 (−0.103–0.563)
Entire validation
model vs. CONUT	0.297 (−0.066–0.613)		0.176 (0.023–0.300)
model vs. PNI	0.149 (−0.235–0.518)		0.054 (−0.079–0.190)

NRI, net reclassification index; IDI, integrated discrimination improvement; CI, confidence interval; CONUT, controlling nutritional status; PNI, prognostic nutritional index.