Table 3 Relationship between anemia and H. pylori status according to age and CCI score
From: Association of active Helicobacter pylori infection and anemia in elderly males
characteristic | Number of cases | Anemia prevalence n (%) | Difference (95% CI) | P value | |
|---|---|---|---|---|---|
Age group | 65–74 years | ||||
 H. pylori positive | 85 | 5 (5.9) | 3.3 (−2.3 to 8.9) | 0.202 | |
 H. pylori negative | 154 | 4 (2.6) |  |  | |
75–84 years | |||||
 H. pylori positive | 59 | 3 (5.1) | 3.1 (−3.1 to 9.4) | 0.266 | |
 H. pylori negative | 103 | 2 (1.9) |  |  | |
≥ 85 years | |||||
 H. pylori positive | 84 | 4 (4.8) | 2.9 (−2.1 to 7.9) | 0.196 | |
 H. pylori negative | 161 | 3 (1.9) |  |  | |
CCI score | ≤ 2 | ||||
 H. pylori positive | 170 | 6 (3.5) | 1.0 (−2.3 to 4.4) | 0.569 | |
 H. pylori negative | 279 | 7 (2.5) |  |  | |
> 2 | |||||
 H. pylori positive | 58 | 6 (10.3) | 8.9 (0.8 to 17.0) | 0.009 | |
 H. pylori negative | 139 | 2 (1.4) |  |  | |