Clinical Study
Risk Factors and Prevalence of Helicobacter pylori Infection in Persistent High Incidence Area of Gastric Carcinoma in Yangzhong City
Table 1
Relationships between prevalence of H. pylori infection and general information.
| Factors | No. of subjects in Hp positive group | No. of subjects in Hp negative group | Total no. of subjects | Prevalence | OR (95% CI) | P value |
| Sex | | | | | | | Male | 1446 | 896 | 2342 | 61.74% | 1.00 | 1.000 | Female | 1989 | 1086 | 3075 | 64.68% | 0.97 (0.87–1.08) | 0.573 | Age | | | | | | | 30–39 | 267 | 27 | 294 | 90.82% | 1.00 | 1.000 | 40–49 | 1508 | 818 | 2326 | 64.83% | 0.19 (0.13–0.28) | 0.000 | 50–59 | 1374 | 921 | 2295 | 59.87% | 0.16 (0.11–0.24) | 0.000 | 60–69 | 285 | 215 | 500 | 57.00% | 0.14 (0.09–0.22) | 0.000 | BMI | | | | | | | Underweight | 67 | 34 | 101 | 66.34% | 1.00 | 1.000 | Normal | 2178 | 1319 | 3497 | 62.28% | 0.87 (0.58–1.32) | 0.516 | Obese | 1190 | 629 | 1819 | 65.42% |
1.02 (0.67–1.55) | 0.943 | Marriage | | | | | | | Unmarried | 16 | 5 | 21 | 76.19% | 1.97 (0.73–5.35) | 0.183 | Married | 3326 | 1930 | 5256 | 63.28% | 1.00 | 1.000 | Divorced | 27 | 18 | 45 | 60.00% | 0.79 (0.44–1.44) | 0.446 | Loss of spouse | 66 | 29 | 95 | 69.47% | 1.32 (0.85–1.05) | 0.217 | Education level | | | | | | | Illiterate | 89 | 38 | 127 | 70.08% | 1.38 (0.94–2.04) | 0.100 | Primary school | 1824 | 1085 | 2909 | 62.70% | 1.00 | 1.000 | Middle school | 1333 | 746 | 2079 | 64.12% | 1.05 (0.94–1.18) | 0.371 | University or above | 189 | 113 | 302 | 62.58% | 0.94 (0.74–1.20) | 0.617 | Number of family members | | | | | | | 1 | 36 | 16 | 52 | 69.23% | 1.00 | 1.000 | 2 | 237 | 151 | 388 | 61.08% | 0.70 (0.37–1.30) | 0.257 | 3 | 1000 | 602 | 1602 | 62.42% | 0.74 (0.41–1.34) | 0.320 | 4 | 491 | 280 | 771 | 63.68% | 0.78 (0.42–1.43) | 0.421 | 5 | 1466 | 820 | 2286 | 64.13% | 0.79 (0.44–1.44) | 0.449 | 6 | 152 | 83 | 235 | 64.68% | 0.81 (0.43–1.55) | 0.533 | 7 and above | 53 | 30 | 83 | 63.86% | 0.69 (0.25–1.92) | 0.48 | Annual income | | | | | | | ≤5000 | 104 | 41 | 145 | 71.72% | 1.00 | 1.000 | 5001–20000 | 549 | 367 | 916 | 59.93% | 0.81 (0.55–1.16) | 0.249 | 20001–50000 | 2235 | 1248 | 3483 | 64.17% | 0.86 (0.61–1.23) | 0.418 | 50001–80000 | 450 | 258 | 708 | 63.56% | 0.89 (0.61–1.30) | 0.546 | >80000 | 97 | 68 | 165 | 58.79% | 0.78 (0.49–1.24) | 0.299 |
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