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Table 7 Results of one-way sensitivity analyses for base-case scenario

From: Cost-effectiveness analysis of metformin+dipeptidyl peptidase-4 inhibitors compared to metformin+sulfonylureas for treatment of type 2 diabetes

 

Values

Estimated ICER

Base Case

 

$19420

Death hazard ratio of Met+SU to Met+DPP-4i

1.67 (−10%)

$23760

Death hazard ratio of Met+SU to Met+DPP-4i

2.04 (+ 10%)

$16760

Metformin treatment failure

0.035 (−25%)

$19440

Metformin treatment failure

0.058 (+ 25%)

$19560

Met+DPP-4i treatment failure

0.010 (−25%)

$18970

Met+DPP-4i treatment failure

0.017 (+ 25%)

$20010

Met+SU treatment failure

0.040 (−25%)

$19410

Met+SU treatment failure

0.067 (+ 25%)

$19590

Severe hypoglycemia in Met+SU

0.012 (−25%)

$19500

Severe hypoglycemia in Met+SU

0.020 (+ 25%)

$19500

Severe hypoglycemia in insulin glargine triple therapy

0.008 (−25%)

$19500

Severe hypoglycemia in insulin glargine triple therapy

0.013 (+ 25%)

$19500

Weight gain in the first year of Met+SU

0.383 (−25%)

$19520

Weight gain in the first year of Met+SU

0.638(+ 25%)

$19470

Myocardial infarction in Met+DPP-4i

0.003(−25%)

$19380

Myocardial infarction in Met+DPP-4i

0.005(+ 25%)

$19620

Heart failure in Met+DPP-4i

0.013(−25%)

$19120

Heart failure in Met+DPP-4i

0.021(+ 25%)

$19880

Stroke in Met+DPP-4i

0.002(−25%)

$19470

Stroke in Met+DPP-4i

0.003(+ 25%)

$19520

Heart failure in Met+SU

0.015(−25%)

$19790

Heart failure in Met+SU

0.025(+ 25%)

$19210

Stroke in Met+SU

0.015(−25%)

$19660

Stroke in Met+SU

0.025(+ 25%)

$19340

Costs of myocardial infarction

$13970(−25%)

$19430

Costs of myocardial infarction

$23284(+ 25%)

$19570

Costs of heart failure

$10589(−25%)

$19450

Costs of heart failure

$17648(+ 25%)

$19550

Costs of stroke

$5954(−25%)

$19660

Costs of stroke

$9924(+ 25%)

$19340

Costs of severe hypoglycemia

$110(−25%)

$19500

Costs of severe hypoglycemia

$183(+ 25%)

$19500

Costs of weight gain

$217(−25%)

$19520

Costs of weight gain

$361(+ 25%)

$19470

Costs of insulin glargine

$2917(−20%)

$20320

Costs of insulin glargine

$4375(+ 20%)

$18680

Death rate

0.019 (age 60–70) / 0.046 (age 71–80) / 0.096 (age 81–85) (−10%)

$20780

Death rate

0.024 (age 60–70) / 0.057 (age 71–80) / 0.118 (age 81–85) (+ 10%)

$18470

Time horizon

20 years (− 20%)

$24250

Time horizon

30 years (+ 20%)

$17580

Same cardiovascular event rates from 2 years after dual therapy

MI; 0.004 / HF; 0.02 / Stroke; 0.02

$20420

Age at start of metformin monotherapy

55 (−8%)

$21360

Age at start of metformin monotherapy

65 (+ 8%)

$18120

  1. Acronyms: SU-sulfonylurea, DPP-4i-dipeptidyl peptidase-4 inhibitor, Met; metformin, MI-myocardial infarction, HF-heart failure