GSTM1 and anemia (phenotype): In cases, a similar study of multinomial ordered model has been published where nonanemia (Hb 11 g/dL), mild anemia (10.9 g/dL Hb 10 g/dL), moderate anemia (9.9 g/dL Hb 7.0 g/dL), and severe anemia (Hb 7.0 g/dL) might all be considered ordered responses in children [39].