Queensland children, known for the state child safety system, were five times more likely to die in fiscal year 2016-17, new statistics show.
Queensland Family and Children Commission, which published its annual report on Thursday, found 57 of the 421 children who died were known for the child safety department.
"The death rate for children known by the child restraint system has consistently been higher than the rates for all children, especially for deaths from external causes," the report states.
"This is explained to some extent by the significant disadvantage, abuse and neglect these children experience before they become aware of the child restraint system, as well as the often more risk factors present in their families."
These Children constituted a large number of deaths due to suicide, drowning and fatal attacks.
Of the 19 children who drowned, 10 were known to officials, like nine of the 21 children, suicide and four of the five who died of fatal attacks or neglect.
Suicide was also the leading external cause of death among young people and accounted for almost half of them aged 10-17 years.  Liberal National Party leader Deb Frecklington has attacked premier Annastacia Palaszczuk and accuses her of pursuing the release of the report so it would go unnoticed during the Commonwealth Games.
"It says talking about the manipulation and secrecy of this Labor government, said Mrs. Frecklington on Friday.
She called on the state child safety department to do more to stop children known for officials from dying for preventive causes.
Readers seeking support and information about suicide prevention can contact Lifeline at 13 11 14.
Suicide Dial Service 1300 659 467.