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How is wheelchair patient deaths are calculated?

Powered Wheelchairs
New answer on Sep 28, 2020
2 Answers
1.5 k Views
Ksenia asked on Sep 28, 2020

Great case, really enjoyed it. Can someone please explain how the wheelchair deaths I calcuated. Would appreciate a more simpler overview of second part of the formula so I understand the logic. Thank you!

Volume growth = Incidence patients - wheelchair patient deaths / wheelchair patient population base x changes in wheelchair lifetime / penetration

Wheelchair patient deaths = 490,000 (700K x 70%) + 320,000 (800K x 40%) + 65,000 (260K x 25%) x 3% = 26,000

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Ian
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Content Creator
replied on Sep 28, 2020
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate

Hi Ksenia,

So the key here is the exhibit, which points out the prevelance and pentration rate for the US. The #s multiplied across the 3 diseases gets you the total # of people currently in wheelchairs. Then, the x 3% portion is essentially saying 3% of that population will die per year.

The "base" US deal rate is around 1% of the total pop per year. However, given that this is a more compromised population, one can assume a much higher death rate (here, the author decided 3x).

This is up the to the candidate's judgement and is part of market sizing!

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Clara
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replied on Sep 28, 2020
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut

Hi!

I suggest you ping directly the author, he is on PrepLounge!

I am sure he´ll be happy to help.

Cheers,

Clara

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Ian

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