In the U.S. - there are 200 cardiac arrests per year on the 5,000 passenger airc
ID: 375770 • Letter: I
Question
In the U.S. - there are 200 cardiac arrests per year on the 5,000 passenger aircrafts in service - installing an automated external defibrillator (AED) on a single plane and training crew to use it costs $3,000 annually - if a plane has an AED on board then 16% of those who have cardiac arrest survive (where survival means resuscitated, sent to hospital and then discharged from hospital and for simplicity we ignore hospital treatment costs) compared to a 1% survival rate if no AED is on the plane. - survivors live on average 10 years - on average survivors enjoy a quality of life of 0.5 (on a 0-1 scale) - a year of life in perfect health is valued to be worth $80,000.
(a) Calculate the cost of AEDs per year of life saved.
(b) Calculate the cost of AEDs per QALY.
(c) Does a cost-benefit analysis support installing AEDs on U.S. aircraft? Explain your
answer.
Explanation / Answer
AED No AEDs Additional lives saved Cardiac arrests 200 200 Life saved 16% 1% AL Actual lives saved 32 2 30 AC Annual cost 3000 A Average of life 0.5 0.5 0.5 D Duration in years 10 10 10 V Value of life per year 80000 80000 80000 ADV Total value of live 400000 400000 400000 Value of all lives saved 12800000 800000 12000000 AC/AL Cost of AED /life saved $/Life 93.75 $ Ans A AC/(A*AL*D) Cost of AED/QALY 18.75 $ Ans B Additional value of live 12000000 Cost 3000 So cost benefit suggests 4000 $ per $ spend on AED Ans C
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