<i>RET</i> genotype, allele and haplotype frequencies in patients and controls.

PTC, papillary thyroid carcinoma; FTC, follicular thyroid carcinoma; n, number; %, percentage; OR, odds ratio; CI, confidence interval; (a), G691S/L769L/S836S/S904S (only haplotypes with frequencies >1% are presented); (b), p = 0.026 (overdominant inheritance model); (c), p = 0.021 (overdominant inheritance model); (d), p = 0.033 (additive inheritance model); (e), p = 0.026 (additive inheritance model); (f), p = 0.039; (g), p = 0.039. RET genotype, allele and haplotype frequencies in patients and controls.