GSTM1 and anemia: Moreover, deficiency in riboflavin was associated with a number of concurrent factors such as child weight, WAZ, WLZ, wasting, breastfeeding status Hb concentrations and anemia, elevated CRP, ferritin, sTfR, maternal education, household SES index, and HFIAS, whereas thiamine deficiency was associated with WLZ and breastfeeding status and folate and B12 deficiencies were associated with stunting and hemoglobin concentrations, respectively.