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Table 1 General input parameters

From: Cost-effectiveness analysis of offering free leisure centre memberships to physically inactive members of the public receiving state benefits: a case study

 

Base case value

Lower limit

Upper limit

Distribution for PSA

Source

Starting age

45

25

65

Normal

GIAG

Proportion of recruited participants completing the programme

15.5 %

1 %

50 %

Beta

GIAG

Baseline activity level-all recruited participants

 Low

32.4 %

Dirichlet

GIAG

 Moderate

37.6 %

25 %

50 %

Dirichlet

GIAG

 High

30.0 %

15 %

50 %

Dirichlet

GIAG

Follow-up activity level-completers

 Low

23.5 %

Dirichlet

GIAG

 Moderate

23.5 %

10 %

40 %

Dirichlet

GIAG

 High

52.9 %

35 %

65 %

Dirichlet

GIAG

Duration of effect of Give it a Go on PA (months)

12

4

20

Uniform

Assumption

Relative risks of coronary heart disease

 Moderate activity level

0.90

0.83

0.99

Lognormal

[1]

 High activity level

0.81

0.68

0.96

Lognormal

[1]

Relative risks of stroke

 Moderate activity level

0.86

0.79

0.93

Lognormal

[3]

 High activity level

0.74

0.64

0.85

Lognormal

[3]

Relative risks of type II diabetes

 Moderate activity level

0.67

0.53

0.84

Lognormal

[2]

 High activity level

0.61

0.41

0.9

Lognormal

[2]

Relative risk for mortality

 Non CVD mortality after CHD

1.71

1.44

1.98

Lognormal

[14]

 CVD mortality after CHD

3.89

3.81

3.97

Lognormal

[14]

 Non CVD mortality after stroke

1.71

1.44

1.98

Lognormal

[14]

 CVD mortality after stroke

3.89

3.81

3.97

Lognormal

[14]

 Non CVD mortality after diabetes

1.49

1.24

1.74

Lognormal

[15]

 CVD mortality after diabetes

2.61

2.34

2.88

Lognormal

[15]

Utilities

 CHD 1st event

0.80

0.622

0.931

Beta

[6]

 Post CHD first event

0.92

0.665

1.000

Beta

[6]

 Stroke 1st event

0.63

0.503

0.749

Beta

[6]

 Post stroke 1st event

0.65

0.518

0.771

Beta

[6]

 Diabetes

0.90

0.665

0.997

Beta

[6]

 Mental health gain when moderately active

0.023

0.000

0.200

Beta

[8]

 Mental health gain when highly active

0.104

0.000

0.200

Beta

[8]

  1. Abbreviations: GIAG Give it a Go, PA physical activity, CVD cardiovascular disease, CHD coronary heart disease