| Males | Females | All | ||
| Overall | Overall | 34.6 | 27.1 | 30.9 |
| Age | 4 years | 19.5 | 15.6 | 17.6 |
| 5 years | 35.9 | 26.6 | 31.3 | |
| 6 years | 30.1 | 22.5 | 26.4 | |
| 7 years | 33.5 | 25.9 | 29.8 | |
| 8 years | 31.3 | 31.7 | 31.5 | |
| 9 years | 36.2 | 29.9 | 33.1 | |
| 10 years | 39.4 | 27.4 | 33.6 | |
| 11 years | 43.8 | 28.8 | 36.4 | |
| 12 years | 41.6 | 35.4 | 38.6 | |
Note: Table based on 6,503 respondents. The question "During the past 6 months, do you think that [child] has had any emotional or behavioural problems?" was asked of parents or carers.
Source: NSW Child Health Survey 2001. Centre for Epidemiology and Research, NSW Department of Health (unpublished data).
In 2001almost one-third (30.9%) of parents or carers reported their 4 to 12 year old had an emotional or behavioural problem in the past six months.
Emotional or behavioural problems were reported more frequently for males than females (34.6% and 27.1% respectively). The reported prevalence of emotional or behavioural problems generally increased with age:
The biggest change in emotional and behavioural problems appears to be associated with 5 year olds, with an approximately 80% increase in such problems at that time, followed by some downward adjustment at 6 years.
Subsequent age trends are more consistent for males than females, with females showing substantial variation in emotional wellbeing in the later years, but typically at lower rates than for males.