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Table 1 Maternal demographics used for determination of the propensity score for 6,465 a unmatched public and private deliveries

From: Neonatal outcomes after preterm birth by mothers’ health insurance status at birth: a retrospective cohort study

  Publicly insured women Privately insured women  
(n = 3,085) (n = 3,380) p-valueb
  Mean (±SD) Mean (±SD)  
Maternal age (years) 27.0 (6.0) 32.2 (4.6) <0.0001
  n (%) n (%)  
Parity (2nd + child) 1,739 (56.4) 1,563 (46.2) <0.0001
Single/divorced/widowed 479 (15.5) 99 (2.9) <0.0001
Indigenous 629 (20.4) 6 (0.2) <0.0001
Smoking during pregnancy 1,286 (41.7) 209 (6.2) <0.0001
SE disadvantage 1,832 (59.4) 517 (15.3) <0.0001
Regional/remote residence 1,606 (52.1) 281 (8.3) <0.0001
Diabetes mellitus 24 (0.8) 55 (1.6) 0.019
Previous caesarean 413 (13.4) 721 (21.3) <0.0001
  1. a Restricted to singleton, pre-term births (32–36 weeks), in non-tertiary hospitals, resulting in live-born infants without birth defects.
  2. b ttest for means and Chi square test of independence for proportions.