Table 7: Effect of gravidity and placental malaria infection on mean birthweight.

Placental malariaMean birthweightStd. error (95% CI)

PrimigravidaeActive infection3015105.8(2810–3220)
Past infection3180207.5(2775–3590)
No infection318065.7(3050–3310)

MultigravidaeActive infection3440114.0(3220–3665)
Past infection2930168.9(2600–3265)
No infection326048.0(3170–3355)

The table depicts the marginal mean birthweights estimated from the following model: (Intercept) gravidity, placental malaria, age, age, placental malaria. Covariates appearing in the model are fixed at the following values: age = 21.91.