Table 4.

The χ2 statistic on Disease-Specific Survival and Overall Survival for Anatomic and Prognostic Stage of TNBCs included in SEER cohort (N = 31,941)

Stage	Disease-Specific Survival				Overall Survival
	AS		PS		AS		PS
	χ2	p-value	χ2	p-value	χ2	p-value	χ2	p-value
IA vs IB	24.94	< 0.0001	1.272	0.2593	8.254	0.0041	1.561	0.2115
IB vs IIA	0.0045	0.9461	220	< 0.0001	1.247	0.2641	183.3	< 0.0001
IIA vsIIB	137.6	< 0.0001	23.93	< 0.0001	109.5	< 0.0001	22.64	< 0.0001
IIB vs IIIA	98.42	< 0.0001	0.249	0.6178	92.07	< 0.0001	0.005236	0.9423
IIIA vs IIIB	97.38	< 0.0001	9.91	0.0016	128.1	< 0.0001	11	0.0009
IIIB vs IIIC	0.6823	0.4088	21.1	< 0.0001	0.0601	0.8063	21.44	< 0.0001

TNBC triple negative breast cancer, AS anatomic stage, PS prognosis stage