https://www.qut.edu.au/news?id=186230

A landmark nationwide study of 8500 Australians, aged 16 and over, has identified the widespread scope of child maltreatment that highlights the need for a nationally coordinated response.  The research findings include the following;

1 in 4 Australian children experience sexual abuse
Sexual abuse and emotional abuse strongly linked with mental health disorders
3 in 10 16-24 years old have self-harmed

Please follow the above link for further information.