Clinical Trials Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Feb 21, 2015; 21(7): 2140-2146
Published online Feb 21, 2015. doi: 10.3748/wjg.v21.i7.2140
Table 3 t-test for matched data
Variablemean ± SD
Ruler measuring1.85 ± 0.829
endoscopic measuring1.80 ± 0.830
P value0.8499