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Table 2 Baseline characteristics of the excluded and included children

From: Clustering of asthma and related comorbidities and their association with maternal health during pregnancy: evidence from an Australian birth cohort

Characteristics Children excluded
n = 3330
n (%)
Children included
n = 1777
n (%)
Sex of the study child (1 = male) 1706 (51.2) 904 (50.9)
Birth Weight < 2500 g (yes = 1) 185 (5.6) 103 (5.8)
Gestational age < 37 weeks (yes = 1) 231 (6.9) 119 (6.7)
Breastfed less than 6 months (yes = 1) 1394 (41.9) 779 (43.9)
Type of birth – Normal (Yes = 1) 2132 (64.0) 1103 (62.1)
Type of birth – Caesarean (Yes = 1) 977 (29.3) 542 (30.5)
Immunization not completed (yes = 1) 330 (9.9) 144 (8.1)
Is English spoken at home? (yes = 1) 2845 (85.5) 1612 (90.8)
Is the child Indigenous? (yes = 1) 209 (6.3) 38 (2.1)
Educational Qualification of Mother:   
Year 12 or equivalent (Yes = 1) 1667 (50.1) 1248 (70.2)
University education Graduate/diploma 904 (27.2) 748 (42.1)
  Post-graduate 161 (4.8) 167 (9.4)
Remoteness of Area Metropolitan cities 2244 (67.4) 1298 (73.1)
  Inner cities 620 (18.6) 290 (16.3)
  Outer region/ Remote areas 466 (14.0) 189 (10.6)