Tumor location as an indication for adjuvant radiotherapy in pT3N0 rectal cancer after surgery

Radiation Oncology

Table 1 Baseline characteristics for the whole group

Variable	Adjuvant chemotherapy group (n = 150)	Adjuvant chemo-radiotherapy group (n = 115)	P value
Age, year			0.041
median	57	55
Gender			0.311
male	95	65
female	55	50
Hb g/L			0.025
< 128	67	68
≥ 128	83	47
CEA, ug/mL			0.083
< 5.00	75	70
≥ 5.00	75	45
Tumor Location from AV, cm			0.213
< 7.0	63	58
≥ 7.0	87	57
Tumor grade			0.421
G1	11	5
G2	123	101
G3	16	9
Type of surgery			0.804
Mile’s	30	23
Dixon	117	88
Hartmann	3	4
Tumor volume, cm³			0.083
< 19	68	65
≥ 19	82	50
Retrieved lymph nodes			0.174
< 14	69	63
≥ 14	81	52
Lymph vascular invasion			0.808
yes	11	7
no	139	108
Duration of adjuvant therapy, months
median	5.3 (4.5–6.2)	5.0 (4.4–6.1)	0.485
Follow-up, months			0.872
median	57.1	56.4

Abbreviations: adjuvant-chemo adjuvant chemotherapy, Hb hemoglobin, CEA carcinoembryonic antigen, AV anal verge, tumor grade: G1 well differentiated, G2 moderately differentiated, G3 poorly differentiated

ISSN: 1748-717X