Table 2. Frequencies of NAT2 alleles (%) in different ethnic groups.
| NAT2 allele | Japanese n=731 [63] |
Japanese n=45 [64] |
Korean n=1,000 [65] |
Korean n=193 [64] |
Korean n=555 [66] |
Chinese n=506 [63] |
Cambodian n=307 [67] |
Caucasian n=3,531 [68] |
European n=60 [64] |
African n=60 [64] |
West African n=97 [69] |
|---|---|---|---|---|---|---|---|---|---|---|---|
| *4 | 69.3 | 69.3 | 65.7 | 62.4 | 62.3 | 60.0 | 40.1 | 22.6 | - | 8.9 | 9.3 |
| *5 | 1.4 | - | 1.6 | - | 1.9 | 4.3 | 11.3 | 46.0 | 53.3 | 71.6 | 36.1 |
| *6 | 20.5 | 22.7 | 20.1 | 22.4 | 21.2 | 22.7 | 31.4 | 28.5 | - | - | 17.0 |
| *7 | 8.8 | - | 11.5 | 15.2 | 13.5 | 13.0 | 17.2 | 2.9 | - | - | 6.7 |
| *11 | - | - | - | - | - | - | - | - | 44.4 | 19.4 | - |
| *12 | - | 8.0 | 0.8 | - | 0.5 | - | - | - | - | - | 15.5 |
| *13 | - | 0.1 | 0.1 | - | 0.7 | - | - | - | 2.3 | - | 5.2 |
| *14 | - | - | - | - | - | - | - | - | - | - | 10.3 |
| *18 | - | - | - | - | - | - | - | - | - | - | - |
Rapid NAT2 alleles (*4, *11, *12, *13, and *18); Slow NAT2 alleles (*5, *6, *7, and *14).