Table 1.
Genotype counts and allele frequencies in the two samples
| Subjects | Genotype frequencies |
P value (χ2) | Allele frequencies |
P value (χ2) | |||
|---|---|---|---|---|---|---|---|
| AA (Ser9/Ser9) | AG (Ser9/Gly9) | GG (Gly9/Gly9) | A (Ser9) | G (Gly9) | |||
| French sample | |||||||
| ET patients | 0.233 (7) | 0.600 (18) | 0.167 (5) | 0.533 (32) | 0.467 (28) | ||
| Controls | 0.600 (30) | 0.280 (14) | 0.120 (6) | 0.005 (10.55) | 0.740 (74) | 0.260 (26) | 0.007 (7.16) |
| American sample | |||||||
| ET patients | 0.449 (124) | 0.424 (117) | 0.127 (35) | 0.661 (365) | 0.339 (187) | ||
| Controls | 0.506 (93) | 0.440 (81) | 0.054 (10) | 0.035 (6.732) | 0.726 (267) | 0.274 (101) | 0.039 (4.247) |
The number in parentheses in the genotype column is the number of individuals; the number in parentheses in the allele column is the number of chromosomes. P values show the comparison results between patients and normal controls.