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Table 2 Affected family-based control and transmission disequilibrium test analyses for single nucleotide polymorphism (SNP)1 and SNP2 in sample 1 of rheumatoid arthritis trio families

From: The ITGAVrs3738919-C allele is associated with rheumatoid arthritis in the European Caucasian population: a family-based study

Allele Affected family-based controls Transmission disequilibrium test
  Rheumatoid arthritis cases Controls P Transmission (%) n P
SNP1       
   A 0.360 0.320 0.39 54.4 90 0.39
   G 0.640 0.680     
SNP2       
   C 0.665 0.567 0.04 59.7 92 0.06
   A 0.335 0.433     
  1. n, number of heterozygote parents.