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Table 3 The χ2 statistic on Disease-Specific Survival and Progression-Free Survival for Anatomic and Prognostic Stage of TNBCs included in SYSUCC-PWH cohort (N = 611)

From: AJCC 8th edition prognostic staging provides no better discriminatory ability in prognosis than anatomical staging in triple negative breast cancer

Stage

Disease-Specific Survival

Progression-Free Survival

AS

PS

AS

PS

χ2

p-value

χ2

p-value

χ2

p-value

χ2

p-value

Ia vs IIA

0.5876

0.4433

0.5876

0.4433

0.006753

0.9345

0.0068

0.9345

IIA vs IIB

3.214

0.073

1.572

0.2099

10.36

0.0013

10.05

0.0015

IIB vs IIIA

2.16

0.1417

0.0016

0.9681

5.765

0.0163

0.6587

0.417

IIIA vs IIIB

4.204

0.0403

1.239

0.2656

0.5332

0.4653

0.7811

0.3768

IIIB vs IIIC

0.2007

0.6541

0.7913

0.3737

1.922

0.1656

2.294

0.1299

  1. aNo case was classified as anatomic stage IB in this cohort
  2. TNBC triple negative breast cancer, AS anatomic stage, PS prognosis stage