Table 3 Difference in the H. pylori infection rate between patients with serum vitamin D levels < 20 ng/ml and ≥ 20 ng/ml
Vitamin D (25[OH]D) | H. pylori-positive (N = 415) | H. pylori-negative (N = 257) | Infection rate (%) | P value |
|---|---|---|---|---|
<20 ng/ml | 311 | 157 | 66.5% | - |
≥ 20 ng/ml | 104 | 100 | 51.0% | < 0.001 |