Table 1

Characteristics of patients with rectal cancer

Characteristic	Group; no. (%)^*			p value^†
Characteristic	Preoperative radiation	Postoperative radiation	No radiation	p value^†
No. patients	130 (12.8)	196 (19.3)	689 (67.9)
Age, median, yr	65	65	71	< 0.001^‡
Male sex	89 (68.5)	136 (69.4)	407 (59.1)	0.009
Comorbidities ≥1	23 (17.7)	42 (21.4)	194 (28.2)	0.011

↵* Unless otherwise indicated.
↵† χ² test.
↵‡ Mann–Whitney U test.