Table 1. Patients characteristics.

Baseline characteristic	N	%
Age (years)
Median	62
Range	45–77
Gender
Female, n (%)	9	13.85
Male, n (%)	56	86.15
Histology
Adenocarcinoma, n (%)	32	49.23
Scc, n (%)	33	50.77
cTumour stage
T2, n (%)	2	3.07
T3, n (%)	54	83.07
T4, n (%)	9	13.84
cNodal stage
N0, n (%)	24	36.92
N+, n (%)	41	63.08
cMetastasis stage
M0, n (%)	62	95.38
M+, n (%)	3	4.61
cTNM
cT2N0, n (%)	2	3.08
cT3N0, n (%)	19	29.23
cT3N+, n (%)	32	49.23
cT3N+M+, n (%)	3	4.62
cT4N0, n (%)	3	4.62
cT4N+, n (%)	6	9.23
SPR
1, n (%)	28	43.08
2, n (%)	9	13.85
3, n (%)	7	10.77
4, n (%)	21	32.31
TRG
1, n (%)	34	52.31
2, n (%)	11	16.92
3, n (%)	6	9.23
4, n (%)	11	16.92
5, n (%)	3	4.62

Abbreviations: SPR=size-based pathological response; TRG=tumour regression grade.