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Table 4 Performance indices of the different classifications

From: A homogenized approach to classify advanced gastric cancer patients with limited and adequate number of pathologically examined lymph nodes

Classification

Likelihood ratio χ2 (homogeneity)

Linear trend χ2 (discriminatory ability)

AIC (overall performance)

8th AJCC pN

376.9

328.7

12,358

LNR

452.4

408.5

12,283

N′

458.7

390.0

12,276

8th AJCC pTNM

425.3

344.4

12,312

TN′M

485.1

400.6

12,252

  1. AJCC American Joint Committee on Cancer, pN pathologically examined nodal classification, LNR lymph node ratio, N′ pathologically examined modified nodal classification, pTNM pathological tumor-node-metastasis classification, TNM pathological tumor-modified node-metastasis classification, AIC Akaike information criterion