Table I.

Patient and tumor characteristics as well as primary treatment.

Characteristics	No. of patients	% of patients
Age (years)
<60	58	39
≥60	91	61
Sex
Male	143	96
Female	6	4
Smoking
Ever	128	86
Never	10	7
N/A	11	7
Histological grade
I	33	22
II	82	55
III	16	11
N/A	18	12
T class
T2N0	105	71
T3N0	44	30
Treatment
T2
RT	94	90
CRT	11	10
T3
RT	22	50
CRT	22	50
RT dose (Gy)
<60	1	1
60-69	99	66
≥70	49	33

N/A, not available; RT, radiotherapy; CRT, chemoradiotherapy.