An Epidemiologic Study Is Conducted to Evaluate the Long-Term Complications

question 113

Multiple Choice

An epidemiologic study is conducted to evaluate the long-term complications of coronary stent placement.  10,000 patients who underwent emergency or elective percutaneous coronary intervention at tertiary care centers around the nation were randomly selected and monitored for the development of adverse events.  According to the study results, 2% of patients who received bare metal stents developed stent thrombosis within a year.  40% of the patients who developed stent thrombosis died as a result.  The risk of death in a patient who develops stent thrombosis is best described by which of the following epidemiologic parameters?

• A)Attack rate
• B)Case fatality rate
• C)Median survival time
• D)Mortality rate
• E)Standardized mortality ratio

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Definitions:

Habituation

The process of becoming accustomed to a stimulus or environment over time, resulting in a decrease in response.

Stimulus

Something that incites or provokes a physiological or psychological action or response.

Decreased Responsiveness

A reduction in the strength or frequency of a person's reactions to stimuli, which can be a sign of various physical or psychological conditions.

Snellan Chart

A visual tool consisting of lines of letters in decreasing size used to test visual acuity from a specific distance.