Case Control Study
Copyright ©The Author(s) 2016.
World J Gastroenterol. Jun 7, 2016; 22(21): 5060-5067
Published online Jun 7, 2016. doi: 10.3748/wjg.v22.i21.5060
Table 2 Dose-dependent association between gastric cancer risk and serum catalase and alkyl hydroperoxide antibodies levels in study subjects n (%)
All subjects
H. pylori positive subjects
H. pylori negative subjects
Antibody level (OD)1CaseControlOR (95%CI)2P value for trendAntibody level (OD)CaseControlOR (95%CI)2P value for trendAntibody level (OD)CaseControlOR (95%CI)2P value for trend
KatA
≤ 0.4187167 (71.98)66 (25.0)1.0 (Reference)< 0.001 ≤ 0.415292 (69.70)29 (24.58)1.0 (Reference)< 0.001 ≤ 0.416766 (74.16)32 (24.58)1.0 (Reference)< 0.001
0.4187-0.531336 (15.52)66 (25.0)4.25 (2.49-7.27)0.4152-0.513323 (17.42)30 (25.42)3.79 (1.78-8.06)0.4167-0.55689 (10.11)33 (25.42)6.67 (2.70-16.51)
0.5313-0.679918 (7.76)66 (25.0)9.95 (5.05-19.62)0.5133-0.66929 (6.82)30 (25.42)9.69 (3.81-24.70)0.5568-0.682411 (21.36)33 (25.42)7.00 (2.68-18.30)
> 0.679911 (4.74)66 (25.0)15.85 (6.97-36.06)> 0.66928 (6.06)29 (24.58)16.55 (5.51-49.76)> 0.68243 (3.39)32 (24.58)19.89 (4.32-91.70)
AhpC
≤ 0.216888 (37.93)66 (25.00)1.0 (Reference)< 0.001 ≤ 0.218251 (38.64)29 (24.58)1.0 (Reference)< 0.001 ≤ 0.211031 (34.83)32 (24.58)1.0 (Reference)< 0.001
0.2168-0.326569 (29.74)66 (25.00)1.26 (0.76-2.11)0.2182-0.343341 (31.06)30 (25.42)1.10 (0.54-2.25)0.2110-0.331029 (32.58)33 (25.42)1.44 (0.69-3.00)
0.3265-0.488849 (21.12)66 (25.00)1.41 (0.82-2.43)0.3433-0.490828 (21.21)30 (25.42)1.54 (0.70-3.38)0.3310-0.494816 (17.98)33 (25.42)1.83 (0.80-4.23)
> 0.488826 (11.21)66 (25.00)3.54 (1.84-6.82)> 0.490812 (9.09)29 (24.58)3.40 (1.32-8.73)> 0.494813 (14.61)32 (24.58)3.33 (1.31-8.46)