Gastroenterology Research and Practice / 2017 / Article / Tab 1

Research Article

Influence of Dietary Factors on Helicobacter pylori and CagA Seroprevalence in Bulgaria

Table 1

H. pylori IgG and CagA IgG seroprevalence in 294 asymptomatic Bulgarian blood donors according to the consumption of some dietary factors.

Dietary factorSubjects evaluatedH. pylori IgG positive value2 (χ2)CagA IgG positive value2 (χ2)
NumberNumber%Number%

Age1
 18–30754053.30.001 (18.702)2432.00.006 (12.62)
 31–40755877.33952.0
 41–50755978.74256.0
 51–69695681.24058.0
Sex1
 Male21815068.80.018 (5.603)10146.30.082 (3.01)
 Female766382.924457.9
Subject’s level of education1
 Elementary433786.00.097 (4.669)2762.80.105 (4.508)
 Secondary17812570.28748.9
 Higher735169.93142.5
Profession1,3 ()
 Physical work18413673.90.449 (0.573)9752.70.07 (3.292)
 Intellectual work996969.74141.4
Smoking
 No1168472.40.701 (0.769)5648.320.019 (3.271)
 ≤20 cigarettes/day16111571.47747.8
 >20 cigarettes/day171482.41270.6
Alcohol
 No856272.40.701 (0.712)4451.80.657 (0.84)
 ≤5 days/week16312073.28167.5
 >5 days/week463167.42043.5
Coffee
 No352160.00.203 (3.194)1337.10.296 (2.433)
 ≤5 days/week302376.71653.3
 >5 days/week22916973.811650.7
Fresh fruits
 No131076.91.000 (0.111)969.20.125 (4.153)
 ≤5 days/week705172.93955.7
 >5 days/week21115272.09746.0
Fresh vegetables
 No7457.10.483 (1.502)571.40.149 (3.81)
 ≤5 days/week906875.65055.6
 >5 days/week19714171.69045.7
Green tea
 No22116273.30.531 (1.356)11250.70.595 (1.039)
 ≤5 days/week554072.72647.3
 >5 days/week181161.1738.9
Honey
 No956972.60.019 (7.877)5254.70.018 (7.988)
 ≤5 days/week1259979.26753.6
 >5 days/week744560.822635.12
Olive oil
 No17112673.70.161 (3.658)8750.80.285 (2.51)
 ≤5 days/week705477.13752.9
 >5 days/week533362.32139.6
Raw garlic
 No634673.00.967 (0.067)3758.70.241 (2.842)
 ≤5 days/week16512072.77746.7
 >5 days/week664771.23147.0
Raw onion
 No654467.70.389 (1.886)3350.80.964 (0.072)
 ≤5 days/week15311675.87549.0
 >5 days/week765369.83748.7
Red wine
 No1329572.00.396 (1.853)6952.30.631 (0.92)
 ≤5 days/week1098376.15247.7
 >5 days/week533566.02443.4
Yoghurt
 No211466.70.387 (1.897)1047.60.049 (6.016)
 ≤5 days/week16412475.69155.5
 >5 days/week1097568.84440.42
Total29421372.414549.3

1As previously reported by Yordanov et al. [29]; 2 and χ2 values were according to the univariate analysis; the statistically significant values are shown in bold; 3the number was lower than the total number of subjects due to some missing information.

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