Original Articles
Copyright ©The Author(s) 1998.
World J Gastroenterol. Feb 15, 1998; 4(1): 57-60
Published online Feb 15, 1998. doi: 10.3748/wjg.v4.i1.57
Table 1 Single variable analysis of risk factors of EC
FactorsCasesControlsχ2OR95%CI1P
Smoking
Yes6544
No245315.533.261.74-6.120.0012
Family history of cancer
Yes438
No468335.4610.484.81-22.480.0000