Table 3

Multivariable conditional logistic regression analysis using duration of ruptured membranes of 18 h*

Odds ratio (95% CI)p Value
Group B streptococcus carrier
    Yes6.88 (2.77 to 17.1)<0.001
    No
Maternal infection
    Yes4.17 (1.12 to 15.4)0.029
    No
Maximum intrapartum temperature2.16 per °C (1.32 to 3.53)0.001
Duration of ruptured membranes
    <18 h0.054
    ⩾18 h1.82 (0.99 to 3.35)
Fetal tachycardia
    Yes1.86 (0.96 to 3.35)0.065
    No
  • *Adjusted for age, categorised as younger or older than 20 years of age and postdelivery antibiotics for mother.