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Table 4 Sensitivity testing ($AUD)

From: Cost-effectiveness of active transport for primary school children - Walking School Bus program

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)
  1. $AUD Australian dollars; DALY disability-adjusted life year; M million
  2. Source: ACE-Obesity project