TABLE 1.

Patient demographics and clinicopathologic characteristics (n = 304)

	APR (n = 128)	%	CAA (n = 176)	%	p-Value
Age					0.84
Median (years)	57		57
Gender (M:F)	74:54		100:76		0.83
Clinical stage					0.52
I	10	8	20	11
II	68	53	74	42
III	50	39	82	47
Pathologic stage					0.23
0	18	14	33	19
I	41	32	54	31
II	36	28	34	19
III	33	26	55	31
Preoperative chemoradiation therapy	115	90	155	88	0.63
Postoperative chemotherapy	75	59	118	67	<0.01
Lymphovascular invasion	14	13	24	17	0.36
Perineural invasion	7	6	12	8	0.54
Positive radial margin	2	2	1	1	0.54
Multivisceral resection	37	29	7	4	<0.01
Year of surgery
1992–1998	66	52	71	40	0.05
1999–2003	62	48	105	60

APR abdominoperineal resection, CAA coloanal anastomosis