The A allele of rs965513 polymorphism was shown to be highly associated with risk of thyr</span>oid cancer, with odds ratios of 1.58 (95% CI 1.32-1.90) in all populations, 1.65 (95% CI 1.31-2.07)) in Caucasian populations and 1.49 in Asian populations.
For rs965513, individuals carrying the risk A allele, compared to individuals with the G allele, had 31 % higher risk of thyroid cancer (A vs. G: OR 1.31, 95 % CI 1.17-1.46).
The four validated TC SNPs accounted for a relatively large proportion (∼11%) of the sibling relative risk of TC, principally owing to the large effect size of rs965513 (OR 1.74).
Five single nucleotide polymorphisms (SNPs) were previously reported to be associated with thyroid cancer in European populations in two genome-wide association studies (GWAS): rs965513 (9q22.33), rs944289 (14q13.3), rs116909374 (14q13.3), rs966423 (2q35) and rs2439302 (8p12).