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Genotype relative risk analysis for single nucleotide polymorphism 2 in sample 3 of rheumatoid arthritis trio families
| Genotype | Rheumatoid arthritis cases | Controls | P |
| C/C | 88 | 76 | 0.2 (C/C versus C/A + A/A) |
| C/A | 111 | 106 | 0.02 (C/C + C/A versus A/A) |
| A/A | 22 | 39 |
