TABLE 2.

Summary of Romp & Chomp intervention base case and sensitivity analyses

	Base case	Sensitivity analysis 1: Intervention costs borne only by children aged 4 to 5 years	Sensitivity analysis 2: High intervention cost estimate	Sensitivity analysis 3: Worst case a	Sensitivity analysis 4: 3% discount rate
Number of children intervention costs borne by	1 906 075 19	642 178 19	1 906 075 19	642 178 19	1 906 075 19
BMI effect size at age 3.5 years	−0.06 kg/m2			−0.01 kg/m2	−0.06 kg/m2
Intervention costs assumptions	As per Table 1		As per Table 1, except: Health Promotion Officers (n = 652) employed at 1 FTE. 2 h allocated to training and sweet drink demonstration by Child Carers and Preschool Teachers. 1.5 h allocated for dentists to engage with parents and early childhood carers and educators training. Intervention materials for participants were paper based. Travel distance to ECEC settings and festivals of 31.2km 41		As per Table 1
Discount rate	5%				3%

Abbreviations: BMI, body mass index; ECEC, early childhood education and care; FTE, full‐time equivalent; kg, kilogram; km, kilometre; m, metre.

^a Lower CI of intervention effect, high‐cost estimate and intervention cost only borne by children aged 4–5 years.