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Genotype Distributions
| Genotype | Total (%) | Grouping |
|---|---|---|
| CHRNA4 | ||
| T/T | 26 (29.9) | T/T |
| T/C | 41 (47.1) | T/C |
| C/C | 20 (23.0) | C/C |
| COMT Val158Met | ||
| Met/Met | 21 (23.9) | Met/Met |
| Met/Val | 44 (50.0) | Val carrier |
| Val/Val | 23 (26.1) | Val carrier |
| DAT1 3′ VNTR | ||
| 9/9 | 6 (7.3) | 9-R |
| 9/10 | 35 (42.7) | 9-R |
| 10/10 | 41 (50.0) | 10-R |
