NPRL3 and microcytic anemia: Through a logistic regression analysis of all the three variants, we determined a significant association of NPRL3 rs191086839 and LUC7L rs372755452 with the risk of the microcytic hypochromic trait (odds ratio [OR] = 40.87 and 20.2; 95% confidence interval [CI] = 7.26–229.99 and 2.13–191.3, respectively; Table S2) and of NPRL3 rs191086839 with the risk of microcytic anemia (ORs = 132.74; 95% CIs = 11.80–1,493.49).