Table 2. Comparison and kappa statistics between the sT and pT categories patients.

		sT					na
		sT1	sT2	sT3	sT4a	sT4b
pT	sT1	5	6	1	0	0	12
	pT2	6	32	36	69	21	164
	pT3	2	20	76	396	157	651
	pT4a	0	3	11	60	25	99
	pT4b	0	0	0	2	20	22
na		13	61	124	527	224	949

n^a: Number of patients.