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Table 1 IFN-γ genotype and allele distribution

From: +874(T→A) single nucleotide gene polymorphism does not represent a risk factor for Alzheimer's disease

  Genotype Allele
  T/T(H) T/A(I) A/A(L) T A
AD 20(17,4%) 58(50,4%) 37(32,2%) 98(42,6%) 132(57,4%)
HC 15(16,8%) 49(55,1%) 25(28,1%) 79(44,4%) 99(55,6%)
  1. Genotype χ2 = 0.488, df = 2, p = 0.783
  2. Allele χ2 = 0.232, df = 1, p = 0.63
  3. In brackets there are the corresponding phenotype high (H), intermediate (I) and low (L).