It Is Estimated That the Prevalence of Smoking in a Population

question 197

Multiple Choice

It is estimated that the prevalence of smoking in a population is 50%.  A cohort study conducted using a random sample from this population showed that the 5-year risk of ischemic stroke is 1:1000 among smokers and 0.5:1000 among non-smokers. What percentage of ischemic strokes observed in the population can be attributed to smoking?

• A)10%
• B)25%
• C)33%
• D)50%
• E)75%

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Definitions:

Revenue

The total amount of money received by a company from its business activities, such as selling goods or services, before any expenses are subtracted.

Debit Balance

Refers to the balance remaining in a financial account where debts or expenses exceed the credits or revenues.

Footing

Footing is the process of summing up the numerical values in an accounting column to determine the total, typically as a preliminary step in the preparation of financial statements.

Normal Debit Balance

The expected balance type of an account that is increased by a debit, typical for assets, expenses, and losses.