. 2017 Aug 23;8(14):2765–2773. doi: 10.7150/jca.19515

Table 2.

Comparison of prognostic homogeneity between the 7^th and 8^th AJCC T classification schemes

Staging scheme	7^th T1		7^th T2		7^th T3		P value^*
Staging scheme	No.	Median survival	No.	Median survival	No.	Median survival	P value^*
8^th T stage
8^thT1	226	47 months	-	-	236	26 months	<0.01
8^th T2	-	-	298	32 months	821	20 months	<0.001
8^th T3	-	-	112	21 months	308	16 months	<0.01
P value^§		-		0.08		<0.01

AJCC, American Joint Committee on Cancer; RPA, recursive partition analysis

*Comparison of OS within different 7^th T classifications. Bold P values indicate statistical significance (i.e., P < 0.05).

§Comparison of OS within different 8th T classifications. Bold P values indicate statistical significance (i.e., P < 0.05).