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Table 1 Base case

From: Cost-utility of as-needed ICS-formoterol versus to maintenance ICS in mild to moderate persistent asthma

Variable

Base case

Valor high

Valor low

References

Cost US$

 Cost Budesonide-Formoterol (per 120 doses)

$53

$66

$40

 

 Cost controlled (anual)

$416

$520

$312

[17]

 Cost mild exacerbation (per episode)

$94

$118

$71

 

 Cost moderate exacerbation (per episode)

$191

$239

$143

 

 Cost severe exacerbation (per episode)

$386

$483

$290

 

Utilities (anual)

 Controlled asthma

0.92

1

0.69

 

 Exacerbation with OCS Burst

0.86

1

0,65

[13]

 Exacerbation with ED visit

0,83

1

0,62

 

 Exacerbation with Hospitalization

0.74

0.93

0.56

 

Budesonide + Formoterol efect

 Relative risk on exacerbation rate

0.85

0.72

1

 

 Relative risk on ED visit

0.65

0.43

0.98

[9]

 Adherence to as need—budesonide-formoterol

68%

85%

51%

[10]

 Adherence to IC daily

62%

78%

47%

[10]

 As-Needed budesonide-formoterol by Time of Day

0.52

0.65

0.39

 

Transition probabilities

 Probability controlled to OC Burst

0.11

0.14

0.10

 

 Probability OCS Burst to ED visit

0.02

0.03

0.02

[12]

 Probability of ED visti to hospitalization

0.0117

0.01

0.01

 

 Asthma mortality

0.0000020

0.00

0.00

 

 Annual dicount rate

5%

6%

0%