Table 2 Prevalence of adverse childhood experiences in the K-cohort of the Longitudinal Study of Australian Children
|  | Wave 1 | Wave 2 | Wave 3 | Wave 4 | Wave 5 | Wave 6 | Wave 7 | Waves 1–7# |
|---|---|---|---|---|---|---|---|---|
N | 4,983 | 4,464 | 4,331 | 4,169 | 3,956 | 3,537 | 3,089 | Â |
Adversity Age | 4–5 yrs | 6–7 yrs | 8–9 yrs | 10–11 yrs | 12–13 yrs | 14–15 yrs | 16–17 yrs |  |
Financial hardships (%) | Â | Â | Â | Â | Â | Â | Â | Â |
 0 | 69.4 | 81.6 | 82.7 | 82.3 | 82.4 | 83.5 | 92.0 | 65.4 |
 1 | 16.6 | 11.3 | 10.1 | 10.5 | 10.9 | 10.1 | 5.9 | 11.5 |
 ≥ 2 | 14.0 | 7.1 | 7.2 | 7.2. | 6.7 | 6.4 | 2.1 | 23.1 |
Parental psychological distress | 6.5 | 5.0 | 5.6 | 6.1 | 6.5 | 6.9 | 8.2 | 13.8 |
Parent alcohol/drug abuse | 4.4 | 2.0 | 2.3 | 3.1 | 3.5 | 3.4 | 5.3 | 12.0 |
Verbal interparental conflict (IPC) | 6.6 | 5.8 | 6.1 | 5.6 | 6.3 | 6.0 | 6.6 | 22.6 |
Physical IPC | 0.8 | 0.8 | 0.9 | 0.6 | 0.9 | 1.0 | 1.0 | 3.0 |
Verbal or physical IPC | 6.9 | 6.1 | 6.3 | 5.7 | 6.4 | 6.3 | 6.8 | 23.4 |
Marital separation | 2.8 | 1.8 | 1.9 | 4.4 | 4.4 | 3.5 | 4.0 | 15.3 |
Unsafe neighbourhood | 8.4 | 4.1 | 5.6 | 4.6 | 2.7 | 3.6 | 3.0 | 18.0 |
Death of family member | 2.7 | 3.2 | 3.5 | 5.7 | 6.9 | 6.6 | 7.7 | 21.6 |
Bullying victimization | 20.2 | 31.1 | 33.0 | 29.4 | 41.7 | 41.0 | 36.1 | 54.1 |
Hostile parenting | Â | 10.7 | 10.4 | Â | Â | Â | Â | 17.0 |
Number of ACEs | Â | Â | Â | Â | Â | Â | Â | Â |
 0 |  |  |  |  |  |  |  | 5.7 |
 1 |  |  |  |  |  |  |  | 25.6 |
 2 |  |  |  |  |  |  |  | 28.1 |
 3 |  |  |  |  |  |  |  | 19.8 |
 ≥ 4 |  |  |  |  |  |  |  | 20.8 |