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Genotype distribution and relative allele frequencies of -308 polymorphism of TNF-alpha gene in Chinese with URSA (n = 132) and controls (n = 152).
| Group | No. | Genotype frequency (%) | Allele frequency (%) | |||
|---|---|---|---|---|---|---|
| AA | AG | GG | A | G | ||
| URSA | 132 | 0 (0) | 22 (16.7) | 110 (83.3) | 22 (8.3) | 242 (91.7) |
| Controls | 152 | 1 (0.6) | 13 (8.6) | 138 (90.8) | 15 (4.9) | 289 (95.1) |
| χ2 = 5.1, df = 2, P = 0.078 | χ2 = 2.7, df = 1, P = 0.102 | |||||
