Table 2.

Hospital admissions and emergency department presentations in the previous 12 months and estimated costs in children (n = 462)

Variables	Hospital admissions	ED presentations
Number of patients accessing at least once, n (%)	257 (56)	187 (40)
Total number of encounters	1231	649
Encounters per child in our cohort per annum	2.7	1.4
Population based data (number of encounters per child per annum)a	0.15	0.34
Estimated total cost for our cohortb	AU$8,923,519	AU$406,923
Total cost of hospital in-patient and ED services for our cohortb	AU$9,330,442

ED emergency department. ^aBased on Australian hospital and emergency department statistical data published by the Australian Institute for Health and Welfare [19], and population estimates published by the Australian Bureau of Statistics [20]; ^bbased on average per encounter costs at The Children’s Hospital at Westmead for the 2021/2022 financial year