Cost-effectiveness of reducing children’s sedentary time and increasing physical activity at school: the Transform-Us! intervention

Table 3 Cost-effectiveness results, extrapolating PA-I and SB-I to the Australian population of Year 3 children in Government schools, over the lifetime

Metric	PA-I	SB-I
Total LYs gained over lifetime	36 588 (95% UI 9 070 to 65 519)	35 643 (95% UI 7 009 to 65 711)
Total HALYS saved over lifetime	60 780 (95% UI 15 007 to 109 413)	61 125 (95% UI 11 770 to 111 250)
Total healthcare cost-savings over lifetime	AUD641M (95% UI AUD165M to 1.1B)	AUD654M (95% UI AUD126M to 1.2B)
Total intervention costs	AUD10M (95% UI AUD7M to 15 M)	AUD15M (95% UI AUD10M to 26 M)
Total net cost^a	AUD-631 M (95% UI AUD-1.1B to -155 M)	AUD-638 M (95% UI AUD-1.2B to -110 M)
Net cost per HALY saved (ICER)^a	AUD-10 374 (95% UI AUD-8 934 to -11,674)	AUD-10 444 (95% UI AUD-8 721 to -11 854)
Overall result	Dominant^b (95% UI Dominant to Dominant)
Probability of cost-effectiveness^c	99.4%	99.2%

Table notes:^a Negative total net costs equate to cost-savings. ^b Dominant interventions result in health gains and cost-savings. ^c The willingness-to-pay threshold for this analysis is AUD50,000 per HALY. Costs are presented in 2010 Australian dollars. 95% UI = 95% uncertainty interval based on 2,000 simulations. AUD = Australian dollars. BMI = body mass index. HALYs = Health adjusted life years. ICER = Incremental cost-effectiveness ratio. LYs = life years. M = million. MET = metabolic equivalent task. N/A = not applicable. PA-I = physical activity intervention. SB-I = sedentary behaviour intervention

ISSN: 1479-5868