Table 2 Model inputs.

From: Cost-effectiveness and threshold analysis of deep brain stimulation vs. treatment-as-usual for treatment-resistant depression

Probabilities

Mean

SD

Distribution

Remission with DBS in year 1

0.242

0.17

Beta

Remission with DBS in year 2

0.030

0.08

Beta

Remission with DBS in year 3

0.047

0.14

Beta

Remission with DBS in year 4

0.010

0.005

Beta

Remission with DBS in year 5

0.010

0.005

Beta

Remission with TAU

0.010

0.005

Beta

Complications after DBS

0.158

 

Uniform

IPG revision/replacement

0.209

 

Uniform

Lead revision/replacement

0.349

 

Uniform

Short hospitalization (3–7 days)

0.442

 

Uniform

Utilities (per QALY)

  Remission

0.840

0.15

Normal

  Non-remission

0.540

0.25

Normal

  Complications

0.026

0.02

Normal

Costs ($)

  DBS-pc (5 years)

120,566.85

817.66

Gamma

  DBS-rc (5 years)

29,524.05

817.66

Gamma

  TAU (healthcare sector perspective)

16,032.51

7832.53

Gamma

  TAU (societal perspective)

38,575.86

5722.14

Gamma

  Pharmacotherapy alone

1576.00

1174.00

Gamma

  Short hospitalization

13,035.00

5214.00

Gamma

  IPG revision/replacement

30,347.60

 

Uniform

  Lead revision/replacement

27,066.84

 

Uniform