Brief Article
Copyright ©2011 Baishideng Publishing Group Co.
World J Gastroenterol. Apr 21, 2011; 17(15): 2013-2018
Published online Apr 21, 2011. doi: 10.3748/wjg.v17.i15.2013
Table 2 Baseline characteristics of 263 patients with locally advanced rectal cancer n (%)
Baseline characteristicsNT groupControl groupP value
(n = 101)(n = 162)
Sex
Male57880.737
Female4474
Age (yr)155 (51-59)55 (50-60)0.664
Distance of tumor from anal verge
< 5 cm35 (34.7)37 (22.8)0.051
5-12 cm66 (65.3)125 (77.2)
Surgery
APR25320.422
LAR76130
Preoperative serum CEA level
Normal52 (51.5)82 (50.6)0.745
Abnormal35 (34.7)52 (32.1)
Unknown14 (13.9)28 (17.3)
Pretreatment staging tools
MRI61 (60.4)66 (40.7)< 0.001
ERUS28 (27.7)34 (21.0)
CT12 (11.9)62 (38.3)
Pretreatment TNM stage
IIA(T3 N0)24 (23.8)54 (34.0)0.278
IIB (T4 N0)4 (4.0)4 (2.5)
IIIA (T1-2 N1)3 (3.0)8 (4.9)
IIIB (T3-4 N1)32 (31.7)37 (22.8)
IIIC (AnyT N2)38 (37.6)58 (35.8)
Pathologic TNM stage
I (T1-2 N0)35 (34.7)12 (7.4)< 0.01
IIA (T3 N0)26 (25.7)54 (33.3)
IIB (T4 N0)1 (1.0)0 (0)
IIIA (T1-2 N1)6 (5.9)7 (4.3)
IIIB (T3-4 N1)17 (16.8)40 (24.7)
IIIC (AnyT N2)16 (15.8)49 (30.2)
Histologic differentiation
High2 (2.0)20 (12.3)0.013
Moderate70 (69.3)110 (67.9)
Poor24 (23.8)24 (14.8)
Mucinous and signet5 (5.0)8 (4.9)
Lymphovascular invasion
Present21 (20.8)50 (30.9)0.074
Absent80 (79.2)112 (69.1)