TABLE 3

aRR of Children Being DHR or DV by AEDC Domain for Gestational Age and Mode of Birth, NSW 2009 and 2012

DHR,aN = 152 758Language and Cognitive Skills,a,bN = 152 853Basic Literacy,aN = 152 912Basic Numeracy,a,cN = 152 719Physical Health and Well-Being,b,cN = 152 925Gross and Fine Motor Skills,b,cN = 152 852
aRR (95% CI)aRR (95% CI)aRR (95% CI)aRR (95% CI)aRR (95% CI)aRR (95% CI)
Gestational age, wk
 32–331.25 (1.08–1.44)1.36 (1.12–1.65)1.18 (0.97–1.43)1.47 (1.27–1.69)1.51 (1.31–1.75)1.80 (1.54–2.10)
 34–361.26 (1.18–1.34)1.33 (1.22–1.45)1.23 (1.13–1.34)1.30 (1.21–1.39)1.32 (1.23–1.42)1.33 (1.23–1.44)
 371.17 (1.10–1.25)1.15 (1.06–1.26)1.19 (1.10–1.29)1.14 (1.07–1.23)1.26 (1.17–1.34)1.26 (1.17–1.36)
 381.06 (1.01–1.10)1.06 (0.99–1.13)1.05 (0.98–1.11)1.01 (0.96–1.07)1.08 (1.03–1.13)1.06 (1.00–1.12)
 390.98 (0.94–1.02)1.03 (0.97–1.09)1.03 (0.98–1.09)1.02 (0.97–1.07)1.04 (0.99–1.09)1.04 (0.99–1.10)
 40ReferentReferentReferentReferentReferentReferent
 ≥410.99 (0.94–1.03)0.98 (0.92–1.05)0.99 (0.94–1.05)0.99 (0.94–1.04)1.02 (0.97–1.07)1.00 (0.94–1.06)
Mode of birth
 Spontaneous onset of labor, vaginal birthReferentReferentReferentReferentReferentReferent
 Spontaneous onset of labor, cesarean delivery1.04 (0.98–1.11)1.09 (1.01–1.19)1.10 (1.01–1.18)1.11 (1.04–1.19)1.02 (0.96–1.09)0.99 (0.92–1.07)
 Induction of labor, vaginal birth1.06 (1.02–1.10)1.15 (1.09–1.21)1.10 (1.05–1.16)1.09 (1.04–1.14)1.06 (1.01–1.10)1.07 (1.01–1.12)
 Induction of labor, cesarean delivery1.14 (1.06–1.22)1.18 (1.06–1.32)1.12 (1.01–1.25)1.14 (1.04–1.24)1.16 (1.07–1.25)1.14 (1.04–1.25)
 Prelabor cesarean delivery1.07 (1.02–1.12)1.12 (1.05–1.19)1.05 (0.99–1.12)1.09 (1.03–1.14)1.06 (1.01–1.11)1.10 (1.04–1.16)
  • All models adjusted for maternal age at birth, marital status at birth, private obstetric care, socioeconomic status at birth, smoking during pregnancy, maternal hypertension, maternal diabetes, parity, timing of first antenatal visit, plurality, small for gestational age, age at assessment, English as a second language, and sex.

  • a Model also adjusted for assessment year.

  • b Model also adjusted for maternal country of birth.

  • c Model also adjusted for major congenital conditions.