Mean age (months) at which breastfeeding was stopped was 11.8 (±2.2) in children with Hb <11mg/dl (severe anemia), 10.5±2.8 in those with Hb = 11-11.9mg/dl (mild-moderate anemia), and 9.4±3.9 in children with Hb >12mg/dl (no anemia) (P=0.0445). Here, GSTM1 is linked to anemia (phenotype).