Clinical Research
Copyright ©2006 Baishideng Publishing Group Co.
World J Gastroenterol. Oct 7, 2006; 12(37): 6017-6020
Published online Oct 7, 2006. doi: 10.3748/wjg.v12.i37.6017
Table 1 Baseline demographic variables
VariableReference groupTest group
n182187
Male: Female115:67114:73
Mean age ± SD (yr)42.3 ± 11.742 ±12.3