Table 3

Independent predictors of preterm delivery in multiple logistic regression analysis (n=923)

VariableOR (95% CI)p Value
Maternal haemoglobin after delivery (g/l)0.97 (0.96–0.99)<0.001
Smoking2.44 (1.18–5.05)0.024
Gravidity0.82 (0.68–0.99)0.026
Chloroquine0.41 (0.19–0.92)0.041
  • Odds ratios represent the risk of preterm delivery for a 10 g/l increase in maternal haemoglobin or the presence of a categorical variable. BMI was available for 466 women only and was not included in this model (see text).