Retrospective Study
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Oct 21, 2014; 20(39): 14463-14471
Published online Oct 21, 2014. doi: 10.3748/wjg.v20.i39.14463
Table 1 Characteristics of the training and testing sets[1,2] n (%)
Training set (n = 162)
Testing set (n = 176)
P value
CRC (n = 55)Non-CRC (n = 107)P valueCRC (n = 56)Non-CRC (n = 120)P valueCasesControls
Age, yr (S.E.)66.47 (1.50)68.31 (1.12)0.33567.38 (1.83)69.99 (1.03)0.2160.7040.270
Gender0.6300.1760.3870.313
Male32 (58.2)58 (54.2)28 (50.0)73 (60.8)
Female23 (41.8)49 (45.8)28 (50.0)47 (39.2)
Stage--0.447-
I21 (38.2)-15 (26.8)-
II10 (18.2)-9 (16.1)-
III14 (25.5)-21 (37.5)-
IV10 (18.2)-11 (19.6)-
Tumor site----0.286-
Colon28 (50.9)30 (53.6)
Rectum22 (40.0)16 (28.6)
Cecum4 (7.3)5 (8.9)
Colon+Rectum1 (1.8)5 (8.9)