Characteristics of the children included in the analysis or excluded from the analysis because of missing outcome data
| Characteristic | Included | Missing outcome |
|---|---|---|
| n (%) | n (%) | |
| Individual | ||
| All children | 265 013 (96.1) | 10 787 (3.9) |
| Gender | ||
| Boys | 132 741 (50.1) | 6231 (57.8) |
| Girls | 132 272 (49.9) | 4556 (42.2) |
| Indigenous | 13 553 (5.1) | 860 (8.0) |
| Bilingual | 50 078 (18.9) | 3010 (27.9) |
| Oral communication in the classroom | ||
| Poor | 12 685 (4.8) | 829 (9.2) |
| Average | 64 389 (24.3) | 2959 (32.8) |
| Good | 187 662 (70.9) | 5236 (58.0) |
| Early childhood education and care | ||
| Parental care only | 12 274 (5.1) | 432 (5.3) |
| Non-parental care (excluding preschool) | 33 206 (13.7) | 1311 (16.2) |
| Preschool | 196 450 (81.2) | 6375 (78.5) |
| Community | ||
| Area-based socioeconomic position | ||
| Quintile 1 (most disadvantaged) | 49 149 (18.6) | 2477 (23.0) |
| Quintile 2 | 49 671 (18.8) | 1995 (18.6) |
| Quintile 3 | 51 916 (19.6) | 1962 (18.2) |
| Quintile 4 | 54 075 (20.4) | 2224 (20.7) |
| Quintile 5 (least disadvantaged) | 59 744 (22.6) | 2096 (19.5) |
| Labour force unemployed (%), mean (SD) | 5.8 (2.7) | 6.2 (3.5) |
| Completed year 12 (%), mean (SD) | 50.5 (14.3) | 50.5 (14.7) |
| Single parents <25 years (%), mean (SD) | 1.5 (1.5) | 1.5 (1.5) |
| Accessibility and Remoteness Index | ||
| Remote | 6964 (2.6) | 531 (4.9) |
| Regional | 75 259 (28.4) | 2842 (26.4) |
| Major cities | 182 790 (69.0) | 7414 (68.7) |