Table 3 Association of maternal iron status (ferritin) with malaria infection at antenatal enrolment and at delivery, Madang, Papua New Guinea, 2009–2013

Enrolment

 Peripheral infection^a

  Iron deficiency

   Ferritin < 15 μg/L

0.50 (0.38, 0.66)

   Ferritin ≥ 15 μg/L

Reference

  Log₂(ferritin)

1.37 (1.23, 1.53)

Delivery

 Peripheral infection^a

  Iron deficiency

   Ferritin < 15 μg/L

0.68 (0.46, 1.00)

   Ferritin ≥ 15 μg/L

Reference

  Log₂(ferritin)

1.27 (1.10, 1.48)

 Placental infection (blood)^a

  Iron deficiency

   Ferritin < 15 μg/L

0.66 (0.39, 1.14)

   Ferritin ≥ 15 μg/L

Reference

  Log₂(ferritin)

1.22 (1.00, 1.49)

 Placental infection (histology)^a

  Iron deficiency

   Active infection

0.91 (0.58, 1.43)

   Past infection

0.35 (0.24, 0.50)

   No infection

Reference

  Log₂(ferritin)

   Active infection

1.04 (0.88, 1.22)

   Past infection

1.65 (1.42, 1.91)

   No infection

Reference