Regression analysis showed that women intaking iron supplements during pregnancy (0.549, 0.350 ~ 0.860), and intaking sufficient red meat (0.647, 0.437 ~ 0.958) had lower rates of anemia, while women wo had anemia during pregnancy (2.754, 1.844 ~ 4.113 for mild anemia, and 3.815, 1.564 ~ 9.309 for moderate or severe anemia), had postpartum over 7 months (1.717, 1.112 ~ 2.650), with abnormal serum ferritin (11.931, 4.846 ~ 29.379) and excessive transferrin receptor levels (1.817, 1.050 ~ 3.145) had higher rates of anemia. Here, TFRC is linked to anemia (phenotype).