At the end of 2014, 5,200,000 Americans were diagnosed with Alzheimer's disease. It is estimated that approximately 200,000 new cases of Alzheimer's are diagnosed each month. What would be the estimated prevalence of Alzheimer's in the United States by the end of March 2015 (for the purpose of this question, assume that no patients die during this period). The 2015 population is estimated to be 320,000,000 people.

Question

Quizplus · Accepted Answer

{[5,200,000 diagnosed + (3 months *200,000 new patients per month)]/320,000,000 population}* 1,000 = 18.125 rounded to 18.13 Alzheimer's cases per 1,000 people.

At the End of 2014, 5,200,000 Americans Were Diagnosed with Alzheimer's