Skip to main content

Table 1 Markov Model Parameter Estimates and Assumptions

From: Cost-effectiveness of artificial intelligence screening for diabetic retinopathy in rural China

Parameter

Value

Sensitivity Analysis Range

1. DR transition probabilities

  No to Mild [27]

0.07

0.01–0.10

  Mild to Moderate [27]

0.19

0.166–0.214

  Moderate to VTDR [27]

0.17

0.147–0.193

  VTDR to Stable [28]

0.90

0.881–0.919

  Stable to Blindness [29]

0.02

0.002–0.03

  VTDR to Blindness [29]

0.09

0.07–0.11

2. Utility

  No DR [30]

0.94

0.83–1.05

  Mild DR [30]

0.87

0.73–1.01

  Moderate DR [30]

0.87

0.73–1.01

  VTDR [30]

0.83

0.74–0.92

  Stable DR [31]

0.85

0.72–0.78

  Blindness [30]

0.81

0.73–0.89

3. Disutility of DR [32]

0.066

-

4. Mortality multipliers [26]

  Blindness

2.34

2.22–2.46

  Diabetes

1.90

1.04–2.7

5. Sensitivity, %

  AI Screening screening [23]

90.79

86.40-94.10

  Ophthalmologist screening [24]

96.00

94.79-97.21

6. Specificity, %

  AI screening [23]

98.50

97.80-99.00

  Ophthalmologist screening [24]

94.67

94.57-97.43

7. Compliance of screening [33], %

86.00

-

  1. DR Diabetic retinopathy, VTDR Vision-threatening diabetic retinopathy