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Characteristics of the study population.
| Variables | Gastric cancer | Controls | P-valuea |
|---|---|---|---|
| Age, years | |||
| ≤60, n (%) | 130 (47.3) | 112 (40.7) | 0.12 |
| >60, n (%) | 145 (52.7) | 163 (59.3) | |
| Gender | |||
| Male, n (%) | 201 (50.4) | 198 (49.6) | 0.77 |
| Female, n (%) | 74 (49.0) | 77 (51.0) |
P-value was calculated by χ2 test.
