In the UAE, Sultan et al. reported the prevalence of anemia at 26.7% (Hb < 12 g/dL) among 258 female college students, with 88.4%, 7.2%, and 2.3% presenting with mild, moderate, and severe (Hb < 7 g/dL) cases [82]. Here, GSTM1 is linked to anemia (phenotype).