Fig. 1

The relationship between blood groups with thyroid hormones. ABO and Le blood groups had no significant correlations with T3 (A and B) and T4 (C and D) in hypothyroidism. TSH had no significant correlation with Rh and ABO blood groups. There was a significant correlation between Lea blood groups (non-secretor) in compared to Leb blood groups (secretor) with TSH (E and F)