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Table 3 Variables for probabilistic sensitivity analysis: Outcomes

From: Cost-effectiveness of a hypertension management programme in an elderly population: a Markov model

Probability variables

Base-case

Distribution type

Distribution

Reference

Reference population *

    

Risk event in medium risk 65-74 years

0.0255

Uniform

(0.0223; 0.0285)

[25, 48]

Risk event in medium risk 75+ years

0.0400

Uniform

(0.0300; 0.0500)

[25, 48]

Risk event high risk group 65-74 years

0.0325

Uniform

(0.0300; 0.0350)

[25, 48]

Risk event in high risk group 75+ years

0.2000

Uniform

(0.1500; 0.2500)

[25, 48]

Usual care group

    

Hazard ratio usual care group

0.6150

Normal

(0.6150; 0.0089)

[14, 36]

Risk of event in middle risk group

a

   

Risk of event in high risk group

b

   

Hypertension programme group

    

Hazard ratio programme group

0.5124

Normal

(0.5124; 0.0131)

[14, 36]

Risk of event in middle risk group

c

   

Risk of event in high risk group

d

   

Scenarios of HR in programme group

0.5100

Uniform

(0.4500-0.5700)

[14, 36]

Common variables

    

Proportion initiate at medium risk

0.7000

Uniform

(0.0000;1.0000)

[14]

Starting age (years)

65

Uniform

(65-80)

 

Risk of unrecognized event

0.3670

Uniform

(0.2500; 0.4000)

[38]

Risk of sudden death

0.1000

Uniform

(0.0600; 0.1400)

[37, 50]

Mortality in assisted 65-74 years

0.1500

Uniform

(0.1000; 0.2000)

[3942, 46, 47, 50, 52, 53]

Mortality in assisted 75+ years

0.3000

Uniform

(0.2500; 0.3500)

[3942, 46, 47, 50, 52, 53]

Mortality in not assisted 65-74 years

0.3000

Uniform

(0.2000; 0.4000)

[3942, 46, 47, 50, 52, 53]

Mortality in not assisted 75+ years

0.6000

Uniform

(0.5500; 0.6500)

[3942, 46, 47, 50, 52, 53]

  1. * A local reference population was used to calculate the risk reduction in both usual care and hypertension programme groups.
  2. a) Risk of event in reference population (middle risk) × hazard ratio in usual care group
  3. b) Risk of event in reference population (high risk) × hazard ratio in usual care group
  4. c) Risk of event reference population (middle risk) × hazard ratio in programme group
  5. d) Risk of event in reference population (high risk) × hazard ratio in programme group