We wish to design a study to assess risk factors for stroke and dementia. There are two primary outcome measures. The first is a measure of neurological function. Patients with “normal” function typically score 70 with a standard deviation of 15. The second outcome is incident stroke. In patients over the age of 65, approximately 14% develop stroke over 25 years. How many participants over the age of 65 must be enrolled to ensure the following?

To determine the required sample size for your study, we need to consider both outcome measures…

Answered: We wish to design a study to assess…

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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We wish to design a study to assess risk factors for stroke and dementia. There are two primary outcome measures. The first is a measure of neurological function. Patients with “normal” function typically score 70 with a standard deviation of 15. The second outcome is incident stroke. In patients over the age of 65, approximately 14% develop stroke over 25 years. How many participants over the age of 65 must be enrolled to ensure the following?

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