Table 1.
Characteristics of the subjects according to Helicobacter pylori immunoglobulin G antibody status
| Characteristic | Total (n = 5,502) | H. pylori Ab (–) (n = 2,627) | H. pylori Ab (+) (n = 2,875) | p value |
|---|---|---|---|---|
| Age, yr | 51.9 ± 8.3 | 51.4 ± 8.6 | 52.2 ± 8.0 | < 0.01 |
| Age quartilea | < 0.01 | |||
| Q1 | 1,183 | 637 (53.8) | 546 (46.1) | |
| Q2 | 1,477 | 649 (43.9) | 828 (56.1) | |
| Q3 | 1,268 | 609 (48.0) | 659 (52.0) | |
| Q4 | 1,574 | 732 (46.5) | 842 (53.5) | |
| Female sex | 2,353 (42.8) | 1,131 (43.1) | 1,653 (57.5) | 0.70 |
| TSH, mU/Lb | 2.2 ± 2.1 | 2.1 ± 2.1 | 2.2 ± 2.0 | 0.08 |
| Free T4, ng/dL | 1.3 ± 0.2 | 1.3 ± 0.2 | 1.3 ± 0.2 | 0.06 |
Values are presented as mean ± SD or number (%).
Ab, antibody; TSH, thyroid stimulating hormone; T4, thyroxine.
a
Age was stratified by quartile. The quartiles were 30 to 45 (Q1), 46 to 51 (Q2), 52 to 56 (Q3), and 57 to 70 (Q4).
b
Geometric mean.