3.
Frequencies of alleles of rs28416520 in dbSNP database
| Study | Sample size (n) | G allele frequency (%) | A allele frequency (%) |
| Our data (gastric cancer) | 24 | 0.875 | 0.125 |
| Our data (control) | 29 | 0.655 | 0.345 |
| Vietnamese | 216 | 0.722 | 0.278 |
| KOREAN | 2910 | 0.711 | 0.289 |
| 1000 Genomes | 5008 | 0.680 | 0.320 |
| TOPMED | 125568 | 0.646 | 0.354 |
| GnomAD | 31184 | 0.629 | 0.371 |
| ALFA | 17772 | 0.614 | 0.386 |
| Northern Sweden | 600 | 0.565 | 0.435 |
| ALSPAC | 3854 | 0.559 | 0.441 |
| TWINSUK | 3708 | 0.554 | 0.446 |
| Qatari | 216 | 0.523 | 0.477 |
| Estonian | 4480 | 0.503 | 0.497 |
| GENOME_DK | 40 | 0.50 | 0.50 |
| Siberian | 32 | 0.47 | 0.53 |
| SGDPPRJ | 280 | 0.368 | 0.632 |