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. 2021 Dec 3;11:728740. doi: 10.3389/fonc.2021.728740

Table 1.

Model input parameters.

Model input Value PSA distribution Sources
Patient characteristics
 Starting age, years 55 Lee et al. (9)
 Proportion of curable recurrence, % Lee et al. a (10)
 Treatment 56.6
 Control 47.8
Incidence rate of curative treatments (/person-year), mean (95% CI) Lee et al. a (10)
 Resection 0.0888 (0.0385, 0.1390) Normal
 Radiofrequency ablation 0.3033 (0.2105, 0.3962) Normal
 Percutaneous ethanol injection 0.2071 (0.1304, 0.2839) Normal
 Liver transplantation 0.0148 (0.0000, 0.0353) Normal
Utilities
 Health state utility (95% CI) Pollom et al. (16)
  Recurrence-free state 0.88 (0.85, 0.92) Beta
  Curable recurrence 0.88 (0.85, 0.92) Beta
  Incurable recurrence 0.40 (0.32, 0.48) Beta
 Treatment-related disutility Ock et al. b (17)
  Resection - 0.26
  Radiofrequency ablation - 0.33
  Percutaneous ethanol injection - 0.33
  Transplantation - 0.21
Costs (USD), mean (SD) c
 Treatment cost (per injection) 3,807
 Health state cost (per cycle)
  Recurrence-free state d 211 (21) Gamma Micro-costing
  Curable recurrence d 211 (21) Gamma Micro-costing
 Incurable recurrence 2,505 (711) Gamma HIRA data
  Event cost for curative treatments HIRA data
  Resection 8,082 (3,015) Gamma
  Radiofrequency ablation 2,085 (1,039) Gamma
  Percutaneous ethanol injection 1,640 (1,282) Gamma
  Liver transplantation 67,142 (23,888) Gamma
 End-of-life cost d 6,798 (679) Gamma Yang, (18)

CI, confidence interval; HIRA, Health Insurance Review & Assessment Service of Korea; PSA, probabilistic sensitivity analysis; SD, standard deviation.

a

Derived from post-hoc analysis of recurrence data from phase III trial (Lee et al., 2015 & Lee et al., 2018).

b

Converted to disutility from Ock et al., 2017.

c

1 USD = 1,166.51 KRW.

d

Standard deviation is assumed to be 10% of the mean value.