Table 4

Sensitivity testing ($AUD)

Scenario

Net cost per DALY saved

(+ cost-offsets)


1. Base case

$0.76 M ($0.23 M; $3.32 M)

Measures to reduce costs

2. Attribute 50% of costs to non-obesity related objectives

$0.37 M ($0.1 M; $1.5 M)

3. Annuitise fixed costs including volunteer training, route design and assessment, kit bags and manuals

$0.73 M ($0.22 M; $3.17 M)

4. Combine cost-cutting measures (Scenarios 2 & 3)

$0.36 M ($0.11 M; $1.5 M)


Measures to improve capacity utilisation and participation

Optimistic

Very optimistic

(using new cost base from Scenario 4)

5. Increase no. of children per WSB from 7

to 10

$0.26 M ($82,000; $1.0 M)

to 14

$0.18 M ($58,000; $0.77 M)

6. Increase no. WSBs per school from an average of 1.6

to 3.0

$0.23 M ($71,000; $1.0 M)

to 6.0

$0.13 M ($38,000; $0.53 M)

7. Increase the number of schools involved per local government from 4

to 6

$0.27 M ($83,000; $1.1 M)

to 8

$0.22 M ($70,000; $0.9 M)

8. Increase % of non-Victorian local governments involved from 50%

to 65%

$0.37 M ($0.11 M; $1.6 M)

to 75%

$0.36 M ($0.1 M; $1.6 M)

9. Combine scenarios 5 and 6

$0.16 M ($57,000; $0.59 M)

$61,000($19,000; $0.25 M)

10. Combine scenarios 5, 6 and 7

$0.12 M ($45,000; $0.43 M)

$38,300 ($11,000; $0.154 M)

11. Combine scenarios 5, 6, 7 and 8

$0.118 M ($43,000; $0.4 M)

$38,000 ($11,000; $0.149 M)


Increase participants receiving benefit

(using new cost base from Scenario 4)

12. Increase % participants new to active transport from 50%

to 65%

$0.28 M ($87,000; $1.1 M)

to 80%

$0.22 M ($68,000; $0.89 M)

13. Combine scenarios 11 and 12

$86,000 ($35,000; $0.29 M)

$20,000 ($4,400; $83,000)


$AUD Australian dollars; DALY disability-adjusted life year; M million

Source: ACE-Obesity project

Moodie et al. International Journal of Behavioral Nutrition and Physical Activity 2009 6:63   doi:10.1186/1479-5868-6-63

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