Skip to main content

Table 1 Characteristics of Aboriginal and non-Aboriginal children in their first year of school in New South Wales in 2009 and 2012h

From: Social and emotional developmental vulnerability at age five in Aboriginal and non-Aboriginal children in New South Wales: a population data linkage study

  Aboriginala Non-Aboriginal Total
n % n % n %
Total (N) 7384 100 95104 100 102488 100
Socio-demographic characteristics
Female sex 3760 51 46784 49 50544 49
Mother married/partnered at child’s birthb 3505 47 79302 83 82807 81
Private patient/insurance at child’s birthb 511 7 31579 33 32090 31
Maternal school educationc
 12 years 2140 29 61148 64 63288 62
 10–11 years 3820 52 28691 30 32511 32
  ≤ 9 years 1424 19 5266 6 6690 7
Highest level of parental occupationd
 Managers/professionals 613 8 24809 26 25422 25
 Business managers/associated professionals 816 11 23133 24 23949 23
 Trades/clerks/services 1607 22 24060 25 25667 25
 Drivers/hospitality/labourers 2049 28 15591 16 17640 17
 Not in paid work in last 12 months 2299 31 7511 8 9810 10
Area-level disadvantagee
 Quintile 5 (Least disadvantaged) 378 5 23884 25 24262 24
 Quintile 4 914 12 20211 21 21125 21
 Quintile 3 3096 42 32697 34 35793 35
 Quintile 2 1389 19 10072 11 11461 11
 Quintile 1 (Most disadvantaged) 1607 22 8240 9 9847 10
Geographic remotenessf
 Major City 2815 38 62858 66 65673 64
 Inner Regional 2578 35 23985 25 26563 26
 Outer Regional 1554 21 7709 8 9263 9
 Remote/Very Remote 437 6 552 1 989 1
Attended preschool/childcare in year before school 5974 81 84547 89 90521 88
AEDC census year
 2009 3325 45 45180 48 48505 47
 2012 4059 55 49924 52 53983 53
Perinatal characteristics
Maternal age at childbirth (years)
 < 20 1254 17 3190 3 4444 4
 20–24 2254 31 13871 15 16125 16
 25–29 1856 25 26177 28 28033 27
 30–34 1344 18 31698 33 33042 32
  ≥ 35 675 9 20167 21 20842 20
No prior births 2475 34 39395 41 41870 41
One prior birth 2057 28 33081 35 35138 34
Two or more prior births 2852 39 22628 24 25480 25
Smoking during pregnancy 3549 48 13419 14 16968 17
Antenatal care in first 20 weeks of pregnancy 5954 81 84951 89 90905 89
Maternal comorbidity during pregnancyg 702 10 10383 11 11085 11
Gestational age
 Early preterm (22–33 weeks) 187 3 1397 1 1584 2
 Late preterm (34–36 weeks) 533 7 4464 5 4997 5
 Early term (37–38 weeks) 1669 23 20995 22 22664 22
 Full to postterm (≥39 weeks) 4995 68 68248 72 73243 71
  1. The counts are an average from the 5 complete datasets following multiple imputation of missing data. Details of the missing data are in Additional file 1 Table S1. a Defined as child or parent identified as Aboriginal on any of the birth records (i.e. perinatal data collection, birth registration or hospital birth record), or AEDC school record; b Based on hospital birth record; c Highest level of education of mother recorded on school enrolment (high school completion is equivalent to 12 years); d Based on highest ranking occupation of either parent or carer recorded on school enrolment; e Socio-Economic Indices for Areas (SEIFA) Index of Relative Socio-economic Advantage and Disadvantage population quintiles based on mother’s statistical local area of residence at the time of birth; f Accessibility/Remoteness Index of Australia (ARIA+) based on mother’s statistical local area of residence at the time of birth; g Includes pre-existing and gestational-onset diabetes and hypertension
  2. hImputed data is included where appropriate