Table 1.

Pre- and postoperative tumor stage, T-level and lymph node (LN) status.

Stage		T-level		LN status
Preoperative
II	31	uT2	2	N+	2
		uT3	90	N−	31
III	63			N+	59
		uT4	2	N+	2
Postoperative
0	11	pT0	13	N−	11
				N+	2
I	32	pT1	13	N−	2
				N+	11
II	20	pT2	24	N−	3
				N+	21
III	28	pT3	37	N−	17
				N+	20
IV	3	pT4	7	N−	3
				N+	4
	T-level downsizing			Downstaging
Yes	51			57
No	43			37
Tumor regression gradinga
TRG 0				1
TRG 1				12
TRG 2				30
TRG 3				38
TRG 4				12

^aFor one case tumor regression grading was not assessable.