Table 3.
Comparison of allele frequencies between Saudi Arabian and other populations
| Population | Sample size | CYP2C19 allele frequency, % | Reference | ||
|---|---|---|---|---|---|
| *2 | *4 | *17 | |||
| Saudi Arabian | 201 | 11.2 | 0.2 | 25.7 | Our study |
| Saudi Arabian | 97 | 15 | - | - | 20 |
| Romanian | 200 | 13.7 | 0.25 | - | 21 |
| Danish | 276 | 15.0 | - | 20.1 | 22 |
| German | 237 | 15.2 | - | 25.5 | 23 |
| Russian | 290 | 11.4 | - | - | 24 |
| Italian | 360 | 11.9 | - | - | 25 |
| Portuguese | 153 | 13.0 | - | - | 26 |
| Greece | 283 | - | - | 19.6 | 27 |
| Polish | 125 | 11.6 | - | 27.2 | 28 |
| Israeli | 140 | 15.0 | - | - | 29 |
| Iranian | 200 | 14.0 | - | - | 30 |
| Turkish | 404 | 12.0 | - | - | 31 |
| Lebanese | 161 | 13.0 | - | - | 32 |
| Egyptian | 247 | 10.9 | - | - | 33 |
| Chinese | 384 | 24.9++ | - | 1.2++ | 34 |
| Thai | 774 | 29.0++ | - | - | 35 |
| North Indian | 300 | 26.2++ | - | - | 36 |
| Japanese | 265 | 27.9++ | - | 1.3++ | 37 |
| Korean | 271 | 28.4++ | - | 1.5++ | 38 |
| Ethiopian | 114 | 14.0 | - | - | 39 |
| Tanzanian | 251 | 18.0 | - | - | 40 |
| African-American | 236 | 18.2 | - | - | 41 |
| African-American | 114 | - | - | 21.0 | 42 |
| Columbian | 198 | 8.7 | - | - | 43 |
| Bolivian | 778 | 7.8 | - | - | 44 |
Represents either not tested or published data not available
++ Represents statistically significant difference in comparison with current data (p <0.05)