Question

ANSWER IN QALYS. DISCOUNT ALL THREE YEARS. ROUND TO TWO DECIMAL PLACES.

1. Suppose Sam has the opportunity for a treatment that will extend his life by one year with a probability of 0.78 by two years with a probability of 0.50, and three years with a probability of 0.18. Sam will die with certainty after three years. QALY weight q₁ is 0.9 in year 1, q₂ is 0.6 in year 2, and q₃ is 0.2 in year 3. The discount rate is 5% per year. The total number of discounted QALYs from this treatment is:

2. Suppose Cathy has the opportunity for a treatment that will extend her life by one year with a probability of 0.69 by two years with a probability of 0.54, and three years with a probability of 0.30. Cathy will die with certainty after three years. QALY weight q₁ is 0.8 in year 1, q₂ is 0.7 in year 2, and q₃ is 0.5 in year 3. The discount rate is 9% per year. The total number of discounted QALYs from this treatment is:

Answer 1

Solution- Discount QLAYS= Probability X weight x Discount factor Year / Probability / weight | PVFO St. | Discount factor 1 0.78 oig 0.952 0.668 2 0.50 0.6 0.go 1 0.272 3 0.3 0.2 0.864 0.052 Total Discounted QLAY = 0.992 Year Probability Weight (PVF @ 9r. / Discount factor II 0.69 Too8 I 0.917 Loi506 2 / 0.54 0.7 16.842 10.318 0.30 Tois 10.772 To.116 Total Discounted QLAY = 10.94 Ang 3