GSTM1 and anemia (phenotype): In the baseline anemia group, the white blood cell (WBC) count, total lymphocyte count (TLC), total neutrophil count (TNC), red blood cell count (RBC), Hb, hematocrit (HCT), MCV, MCH, MCHC, red blood cell distribution width-coefficient of variation (RDW-CV), platelet (PLT) count, and total protein, Alb, globulin (Glb), prealbumin and cholesterol (Chol) levels were lower than those in the baseline non-anemia group (p < 0.05).