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Table 2 Results from the genotype and allele analysis in patients with and without migraine

From: Implications for the migraine SNP rs1835740 in a Swedish cluster headache population

SNP Genotype/Allele Controls % (n) CH without migraine % (n) CH with migraine % (n) X2 (df) p-value
rs1835740 CC 66.6 (379) 63.4 (279) 54.5 (55)   
CT 29.7 (169) 30.9 (136) 38.6 (39)   
TT 3.7 (21) 5.7 (25) 6.9 (7) 7.391 (4) 0.12
C 81.5 (927) 78.9 (694) 73.8 (149)   
T 18.5 (211) 21.1 (186) 26.2 (53) 6.964 (2) 0.031
rs2651899 TT 33.2 (189) 34.9 (152) 47.0 (47)   
TC 49.7 (283) 47.5 (207) 36.0 (36)   
CC 17.2 (98) 17.7 (77) 17.0 (17) 8.029 (4) 0.091
T 58.0 (661) 58.6 (511) 65.0 (130)   
C 42.0 (479) 41.4 (361) 35.0 (70) 3.50 (2) 0.17
  1. SNP single nucleotide polymorphism, n number, CH cluster headache, χ2 chi-squared, df degrees of freedom