Table 1.

Patient and tumor characteristics

	n (%)
Sex
Male	50 (65.8)
Female	26 (34.2)
Median age (range)	64 yrs. (29–84)
Performance status
ECOG 0–1	74 (97.4)
ECOG 2	2 (2.6)
Median tumor size (range)	50 mm (25–120)
Median tumor distance-EAS (range)	60 mm (10–120)
Tumor Stage
cT2	5 (6.5)
cT3	63 (82.9)
cT4	8 (10.6)
cN
cN0	12 (15.8)
cN1	39 (51.3)
cN2	25 (32.9)
Stage
IIA	12 (15.8)
IIIA	3 (3.9)
IIIB	49 (64.5)
IIIC	12 (15.8)
MRF involvement
Yes	34 (44.7)
No	42 (55.3)
IMRT-SIB dose (dose per fraction)
52.5 Gy (2.1Gy)	16 (21)
54 Gy (2.16Gy)	24 (31.5)
55 Gy (2.2Gy)	34 (45)
57.5 Gy (2.5Gy)	2 (2.5)

MRF Mesorectal fascia