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Table 4 Results of multivariable logistic regression for maternal glucocorticoid treatment as recommended within 7 days of delivery

From: Antenatal corticosteroid administration in women undergoing tocolytic treatment who delivered before 34 weeks of gestation: a retrospective cohort study using a national inpatient database

  Odds ratio 95% Confidence interval P value
Age (years)
  ≥ 40 1.11 0.71, 1.75 0.65
 35–39 1.13 0.80, 1.60 0.48
 30–34 1.12 0.81, 1.57 0.50
 25–29 0.95 0.67, 1.35 0.78
  < 20 1.08 0.55, 2.10 0.83
 20–24 (reference) 1.00   
BMI (kg/m2)
  ≥ 30.00 1.34 0.91, 1.99 0.14
 25.0–29.9 0.84 0.67, 1.05 0.12
  < 18.5 0.97 0.67, 1.41 0.89
 18.5–24.9 (reference) 1.00   
Smoking
 Yes 0.96 0.73, 1.28 0.79
 No 1.00   
Multiple births
 Yes 1.06 0.78, 1.43 0.72
 No 1.00   
PROM
 Yes 2.02 1.68, 2.41 < 0.001
 No 1.00   
Placenta previa
 Yes 0.89 0.58, 1.35 0.57
 No 1.00   
HDP
 Yes 0.97 0.57, 1.67 0.92
 No 1.00   
GDM
 Yes 0.74 0.45, 1.22 0.23
 No 1.00   
Gestational age at admission 0.99 0.97, 1.02 0.65
Duration of ritodrine hydrochloride
  ≤ 48 h (reference) 1.00   
 3–6 days 2.52 2.05, 3.10 < 0.001
 7–13 days 0.66 0.49, 0.89 < 0.001
 14–27 days 0.38 0.27, 0.53 < 0.001
  ≥ 28 days 0.37 0.26, 0.52 < 0.001
  1. BMI body mass index, GA gestational age on admission, GDM gestational diabetes mellitus, HDP hypertensive disorders of pregnancy, PROM premature rupture of membranes