You will now evaluate a hypothetical health intervention with a 1-year time horizon comparing two interventions (Intervention A and Intervention B). Before the intervention, the average individual had a HRQoL of 0.5. If they choose to take intervention A, their risk of immediate death is 1%. There is no risk of death from taking intervention B. If they take Intervention A, they have a 60% chance of complete health with a HRQoL of 1.0 and a 39% chance of a slight improvement to a HRQoL of 0.6. If they choose intervention B, again they have no chance of death, but only a 40% chance of complete health, but no chance of a slight improvement, only a 60 percent chance of no effect. To calculate the quality-adjusted life years, you would multiply the expected HRQoL for each arm of the tree by 1 given the one year time horizon. Intervention A costs $20,000 and Intervention B costs $15,000.
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Note: You will use this to answer the next four questions.
If the willingness to pay was set at $0, meaning that the payer was not willing to pay for any gain in health, which intervention would they choose?
Select one:
a. A
b. B
Q 15
Question 15
Using the Decision Tree from Question 14: What is the average QALY achieved from intervention by choosing intervention A (rounded to two decimals)?
Answer:
Path:
Q 16
Question 16
Using the Decision Tree from Question 14: What is the average QALY achieved by choosing intervention B (rounding to 2 decimals)?
Answer:
Path:
Q 17
Question 17
Using the Decision Tree from Question 14: What is the incremental cost-effectiveness ratio of choosing intervention A vs. Intervention B rounded to the nearest thousand dollars?