Table 1 Characteristics of study cohort (Aboriginal children born between 1999 and 2006 and in NT at age 10 years)
| Â | Boys n (%) | Girls n (%) |
|---|---|---|
Total | 5403(100%) | 5035(100%) |
Level of CPS contact | ||
 No contact | 2894(53.6%) | 2722(54.1%) |
 Notification only | 1324(24.5%) | 1215(24.1%) |
 Substantiation only | 794(14.7%) | 703(14.0%) |
 Out-of-home care | 391(7.2%) | 395(7.8%) |
Timing and level of CPS contact | ||
 N* (one or more unsubstantiated notifications but no substantiations at age 0–4, only) | 252(4.7%) | 237(4.7%) |
 S* (one or more substantiated notifications at age 0–4, only) | 187(3.5%) | 189(3.8%) |
 *N (one or more unsubstantiated notifications but no substantiations at age 5–9, only) | 830(15.4%) | 768(15.3%) |
 *S (one or more substantiated notifications at age 5–9, only) | 361(6.7%) | 315(6.3%) |
 NN (one or more unsubstantiated notifications but no substantiations, at both age 0–4 and age 5–9) | 272(5.0%) | 247(4.9%) |
 SN (one or more substantiated notifications at age 0–4 and unsubstantiated notifications at age 5–9) | 203(3.8%) | 211(4.2%) |
 NS (one or more unsubstantiated notifications at age 0–4 and substantiated notifications at age 5–9) | 198(3.7%) | 159(3.2%) |
 SS (one or more substantiated notifications at both age 0–4 and age 5–9) | 206(3.8%) | 187(3.7%) |
Indigenous status of mother | ||
 Non-Aboriginal | 589(10.9%) | 515(10.2%) |
 Aboriginal | 4814(89.1%) | 4520(89.8%) |
Health district of mother’s residence prior to birth | ||
 Darwin Rural | 1046(19.4%) | 932(18.5%) |
 Darwin Urban | 961(17.8%) | 920(18.3%) |
 Katherine | 965(17.9%) | 907(18.0%) |
 East Arnhem | 901(16.7%) | 819(16.3%) |
 Barkly | 354(6.6%) | 311(6.2%) |
 Alice Springs Urban | 410(7.6%) | 390(7.7%) |
 Alice Springs Rural | 766(14.2%) | 756(15.0%) |
Maternal age at birth | ||
 > =35 | 302(5.6%) | 299(5.9%) |
 < 20 | 1537(28.4%) | 1478(29.4%) |
 20–24 | 1679(31.1%) | 1487(29.5%) |
 25–29 | 1188(22.0%) | 1134(22.5%) |
 30–34 | 697(12.9%) | 637(12.7%) |
Parity | ||
 0 | 1714(31.7%) | 1664(33.0%) |
 1–2 | 2360(43.7%) | 2096(41.6%) |
 > =3 | 1327(24.6%) | 1272(25.3%) |
Low birth weight (< 2500 g) | ||
 No | 4769(88.3%) | 4355(86.5%) |
 Yes | 634(11.7%) | 680(13.5%) |
Gestation (in weeks) | ||
 > =37wk | 4665(86.3%) | 4353(86.5%) |
 < 32wk | 139(2.6%) | 141(2.8%) |
 33-36wk | 599(11.1%) | 541(10.7%) |
Complication in pregnancy | ||
 No | 4865(90.0%) | 4531(90.0%) |
 Yes | 538(10.0%) | 504(10.0%) |
Complication in labour | ||
 No | 3204(59.3%) | 3063(60.8%) |
 Yes | 2199(40.7%) | 1972(39.2%) |
Other obstetric complication | ||
 No | 4537(84.0%) | 4211(83.6%) |
 Yes | 866(16.0%) | 824(16.4%) |