Optimized Parameters of Diffusion-Weighted MRI for Prediction of the Response to Neoadjuvant Chemoradiotherapy for Locally Advanced Rectal Cancer

Table 1

Clinical characteristics of the 92 patients and associations with pathological response group.

	Total (n = 92)	Good responder group (n = 37)	Poor responder group (n = 55)	value
Age (years)	63.78 ± 11.34	65.92 ± 7.94	62.72 ± 7.89	0.061
Gender, n (%)
Men	61 (66.3)	26 (70.3)	39 (70.9)	0.947
Women	31 (33.7)	11 (29.7)	16 (29.1)
Type of surgery, n (%)				0.014
LAR	9 (9.8)	7 (18.9)	2 (3.6)
ISR	7 (7.6)	2 (5.4)	5 (9.1)
Local resection	2 (2.2)	2 (5.4)	0 (0)
Dixon	52 (56.5)	22 (59.5)	30 (54.5)
Hartmann	4 (4.3)	0 (0)	4 (7.3)
APR	18 (19.6)	4 (10.8)	14 (25.5)
Pathological T stage, n (%)				<0.001
T0	3 (3.3)	3 (8.1)	0 (0)
T1-2	44 (47.8)	26 (70.3)	17 (30.9)
T3	41 (44.6)	7 (18.9)	35 (63.6)
T4	4 (4.3)	1 (2.7)	3 (5.5)