A hypothetical population of 3000 elderly adults was recruited for a 10-year study of Alzheimer's disease. Upon initial exam prior to the start of follow-up, 450 cases of the disease were diagnosed and excluded from further study. Over the 10-year study period, 640 new cases of Alzheimer's disease developed, and 215 of those incident cases died from the disease. The study participants contributed a total of 18,500 person-years of follow-up time. Calculate the case-fatality rate of Alzheimer's disease among the incident cases in the study population. Express as a percentage, and round to the nearest tenth. Include only the numerical answer (no units) in the answer box.

A hypothetical population of 3000 elderly adults was recruited for a 10-year study of Alzheimer's disease. Upon initial exam prior to the start of follow-up, 450 cases of the disease were diagnosed and excluded from further study. Over the 10-year study period, 640 new cases of Alzheimer's disease developed, and 215 of those incident cases died from the disease. The study participants contributed a total of 18,500 person-years of follow-up time. Calculate the case-fatality rate of Alzheimer's disease among the incident cases in the study population. Express as a percentage, and round to the nearest tenth. Include only the numerical answer (no units) in the answer box.

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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