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Effect of age on HspA seropositivity among the 154 H. pylori-colonized Hong Kong patients
| Age group (yr) | Mean ± SD age (yr) | No. of patients | % Anti-HspA IgG positive | ORa | 95% CIb |
|---|---|---|---|---|---|
| 17–29 | 22.7 ± 3.6 | 12 | 8.3 | 1.0 | |
| 30–49 | 41.1 ± 5.0 | 69 | 33.4 | 5.5 | 0.7–45.3 |
| ≥50 | 67.7 ± 8.9 | 73 | 41.1 | 7.7 | 0.9–62.7 |
OR, odds ratio (P = 0.041; Chi-square analysis for linear trend).
CI, confidence interval.
