Association between rs10487506 and hemoglobin in the Swiss HIV Cohort. (A) Significant associations (P < .01) were observed in the female subpopulation at all time points: before initiation of cART and repeatedly during treatment. A trend in the same direction was detectable in males, but did not reach statistical significance. (B) Association of rs10487506 and Hgb stratified by body mass index (BMI). Swiss HIV Cohort (n = 837).