How would the incidence rate of asthma (per 100,000) be expressed as? - ProProfs Discuss

# How would the incidence rate of asthma (per 100,000) be expressed as? According to a national survey of asthma: On May 1, 2010, the number of residents of Oklahoma who had been diagnosed with asthma at any time during their life was A. The population on June 30, 2010, was B. During the same year, the number of new cases of asthma was C.

A. (A/B) Ã— 100,000
B. (C/A) Ã— 100,000
C. (C/B) Ã— 100,000
D. None of the above

This question is part of Epidemiology
Asked by Emilymaebruce, Last updated: Feb 26, 2019

#### W. Wright

Let's see how far my knowledge stretches

W. WrightBiology student, Biology student, Astoria
Biology student, Biology student, Astoria

Answered on Feb 26, 2019

The correct answer to this question is C. If C is the number of new asthma cases in Oklahoma and B is the population of the residents of Oklahoma, then you could divide C by B and then multiply that by the incidence rate of asthma (100,000).

You would not want to use the number of residents of Oklahoma who have been previously diagnosed, because you are trying to get an incidence rate of asthma. You want to use the value that is the population at a certain time when you know how many people developed asthma at that time.

#### emilymaebruce

Emilymaebruce

Answered on Oct 01, 2017

(c/b) ã— 100,000

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