Table 2 Scenario analyses results

From: Economic evaluation of a digital symptom checker for endometriosis using a Markov decision process model

Scenarios

Value

Incremental cost ($)

Incremental QALYs

Incremental diagnostic delay (years)

ICER ($/QALY)

INMB

(WTP = $100,000/QALY)

Base case

 

−$5196.36

0.049

−4.36

Dominant

$10,089.00

Compliance

Low

0.3

$2124.89

0.008

5.68

265,177.35

−$1323.58

High

0.9

−$6988.52

0.059

−5.69

Dominant

$12,868.90

Uptake

Low

0.3

−$2677.41

0.028

−2.48

Dominant

$5436.65

High

0.9

−$5513.27

0.052

−4.59

Dominant

$10,671.12

Spontaneous doctor visit

Low

20%

−$4772.94

0.073

−7.21

Dominant

$12,037.29

High

50%

−$5247.78

0.040

−3.05

Dominant

$9241.93

Time horizon

      

5 years

5

−$184.88

0.008

−0.23

Dominant

$984.60

10 years

10

−$1180.71

0.021

−1.15

Dominant

$3299.69

20 years

20

−$3531.70

0.041

−3.34

Dominant

$7621.87

Flo subscription fee

Lower: 25%

$7.50

−$5489.32

0.049

−4.36

Dominant

$10,381.96

Lower: 50%

$15.00

−$5391.67

0.049

−4.36

Dominant

$10,284.31

Lower: 75%

$22.50

−$5294.02

0.049

−4.36

Dominant

$10,186.65

Higher: 150%

$44.99

−$5001.06

0.049

−4.36

Dominant

$9893.70

Higher: 200%

$59.99

−$4805.75

0.049

−4.36

Dominant

$9698.39

Higher: 400%

$119.98

−$4024.52

0.049

−4.36

Dominant

$8917.16

  1. Results are presented over a 40-years horizon, with both costs and QALYs discounted at 3% annually.