Case Control Study
Copyright ©The Author(s) 2015.
World J Gastrointest Oncol. Jul 15, 2015; 7(7): 87-94
Published online Jul 15, 2015. doi: 10.4251/wjgo.v7.i7.87
Table 3 Distribution of genotype frequencies in patients and control subjects with regard to addictions
CharacteristicCases n (%)Controls n (%)χ2OR (95%CI)P value
Smoking status
T/T genotype
Smokers2 (66.67)4 (18.18)
Nonsmokers1 (33.33)18 (81.82)1.2639.000 (0.44-339.56)0.133
T/C genotype
Smokers7 (58.33)5 (17.24)
Nonsmokers5 (41.67)24 (82.76)5.0806.720 (1.21-40.80)0.020a
C/C genotype
Smokers104 (77.04)23 (23.23)
Nonsmokers31 (22.96)76 (76.77)64.47511.086 (5.74-21.58)0.000b
Alcoholism
T/T genotype
Alcoholics2 (66.67)7 (31.82)
Non-alcoholics1 (33.33)15 (68.18)0.2904.286 (0.23-145.14)0.530
T/C genotype
Alcoholics10 (83.33)9 (31.03)
Non-alcoholics2 (16.67)20 (68.97)7.35111.11 (1.68-93.07)0.005b
C/C genotype
Alcoholics113 (83.70)48 (48.48)
Non-alcoholics22 (16.30)51 (51.52)31.3855.457 (2.86-10.46)0.000b