Risk factors for moderate or high developmental risk in the 6-month group
| Risk factor N (n)% Whole sample | Total 792 (100) | High 21 (2.7%; 95% CI 1.7 to 4.1) | High/moderate 215 (27.2%; 95% CI 24.2 to 30.4) | Low/no 577 (72.9%; 95% CI 69.6 to 75.8) | unadjusted OR (high/moderate vs low/no)− | p Value |
|---|---|---|---|---|---|---|
| Child level | ||||||
| Male gender | 344 | 12 (3.5) | 97 (28.2) | 247 (71.8) | 1.1 (0.8 to 1.4) | 0.8 |
| Low birthweight (<2500g) | 49 | 3 (6.1) | 16 (32.7) | 33 (67.4) | 1.3 (0.7 to 2.4) | 0.8 |
| Preterm (<37 weeks) | 57 | 2 (3.5) | 17 (29.8) | 40 (70.2) | 1.1 (0.6 to 2.0) | 0.7 |
| SCN/NICU | 102 | 3 (2.9) | 31 (30.4) | 71 (69.6) | 1.2 (0.7 to 1.8) | 0.7 |
| Parent level | ||||||
| Mother did not complete high school | 110 | 3 (2.7) | 37 (33.6) | 73 (66.4) | 1.4 (0.9 to 2.2) | 0.1 |
| Father unemployed at birth | 37 | 1 (2.7) | 15 (40.5) | 22 (59.5) | 1.9 (1.0 to 3.8) | 0.06 |
| Mother nationality | ||||||
| Australia, UK, North America, New Zealand | 355 | 7 (2.0) | 82 (23.1) | 273 (76.9) | 1.0 (ref) | |
| Middle East | 97 | 6 (6.1) | 38 (39.2) | 59 (60.8) | 2.1 (1.3 to 3.5) | 0.002 |
| Asian (includes India, Bangladesh) | 210 | 6 (2.8) | 67 (31.9) | 143 (68.1) | 1.6 (1.1 to 2.3) | 0.02 |
| Other | 78 | 1 (1.3) | 18 (23.1) | 60 (76.9) | 0.9 (0.6 to 1.8) | 0.9 |
| Family level | ||||||
| English not primary language | 240 | 7 (2.9) | 76 (31.7) | 164 (68.3) | 1.4 (1.0 to 1.9) | 0.06 |
| Household annual income at birth<$A25 001 | 94 | 5 (5.3) | 35 (37.2) | 59 (62.7) | 1.7 (1.1 to 2.7) | 0.02 |
| Neighbourhood level | ||||||
| SEIFA lowest decile | 274 | 10 (3.7) | 90 (32.9) | 184 (67.2) | 1.5 (1.1 to 2.1) | 0.02 |
| Composite measures | ||||||
| Perinatal risk | 135 | 4 (3.0) | 39 (28.5) | 96 (71.5) | 1.1 (0.7 to 1.6) | 0.7 |
| Maternal Middle Eastern or Asian nationality | 307 | 12 (3.9) | 105 (34.2) | 202 (65.8) | 1.7 (1.3 to 2.4) | 0.001 |
| Household disadvantage | 187 | 8 (4.3) | 66 (35.3) | 121 (64.7) | 1.7 (1.2 to 2.4) | 0.005 |
NICU, neonatal intensive care unit; SCN, special care nursery; SEIFA, Socio-Economic Indexes for Areas.