Randomized Clinical Trial
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Aug 28, 2014; 20(32): 11415-11421
Published online Aug 28, 2014. doi: 10.3748/wjg.v20.i32.11415
Table 1 The age and gender of the four groups of patients n (%)
Group 1 (n = 180)Group 2 (n = 180)Group 3 (n = 180)Group 4 (n = 180)P value
Age (yr)mean ± SD41.4 ± 12.639.6 ± 13.641.4 ± 12.341.4 ± 13.50.470
GenderMale105 (58)118 (66)102 (57)107 (58)0.337
Female75 (42)62 (34)78 (43)73 (42)