Table 2 Uncertainty analysis

Height, weight of participants

Mean, SE^a

Normal^b

[19]

No. local governments making submissions

296, 370, 444^c

Triangular^d

Estimate

% non-Victorian local governments participating

0.4, 0.5, 0.6³

Triangular^d

Estimate based on VicHealth figures for Victoria

No. participating schools per local government

4, 1^b

Normal^b

VicHealth

Persons attending recruitment evening per school

10, 15, 20^c

Triangular^d

Estimate

Volunteers recruited per school

7,3^b

Normal^b

Estimate

WSB per school

1, 1.6, 3^c

Triangular^d

Min, max -- estimates; most likely -- Vic Health

Volunteers trained per WSB

2, 4, 6^c

Triangular^d

Min, max -- estimates; most likely -- VicHealth guidelines

Average number of children per WSB

3, 7, 12^c

Triangular^d

Estimate

Extra minutes spent on walking

6, 28.3, 84^c

Triangular^d

[15]

No. of days of WSB per week per child

0.5, 1, 5^c

Triangular^d

Mean [15]

No. weeks of intervention effect per year

35, 40^e

Uniform^f

Estimate

Increased METS from walking

1.5, 2.5, 3^c

Triangular^d

[13]

Factor to convert % change in energy balance to % change in body weight

0.38, 0.45, 0.51^c

Triangular^d

[14]

% children enrolled in WSB not walking previously

25%, 50%, 75%^c

Triangular^d

Estimate

Local government officer time (days per week)

2, 3, 4^c

Triangular^d

Estimate based on personal communication VicHealth

On-cost loading on national and state coordinator salaries

50%, 60%, 70%^c

Triangular^d

Estimate

On-cost loading on teachers, local government officer salaries

20%, 30%, 40%^c

Triangular^d

Estimate

School liaison officer time/coordinator time (hours per week)

1, 4^e

Uniform^f

Estimates based on personal communication VicHealth

Volunteer time (minutes per journey/day)

12, 40, 80^c

Triangular^d

[15]

Manual cost

$40 ± 20%^c

Triangular^d

Estimate

Kit bags - cost

$50 ± 20%^c

Triangular^d

Estimate

Special events, theme days etc.

$100, $300, $500^c

Triangular^d

Estimate