Question

In Fantasy City between January 1 and December 31, 2006, 35 new cases of tuberculosis were...

  1. In Fantasy City between January 1 and December 31, 2006, 35 new cases of tuberculosis were diagnosed. There were an additional 300 “old” cases on the list of active cases on December 31, 2006. The population of Fantasy City was 400,000. Due to tuberculosis, 20 deaths have been recorded during this 1 year period.
    1. What is the incidence rate per 100,000 population for tuberculosis during 2006?
    2. What is the prevalence rate of tuberculosis per 100,000 on December 31, 2006?
    3. What is the cause-specific death rate per 100,000 for tuberculosis?

Homework Answers

Answer #1

a.

New Cases = 35

Total population at risk = 400000 - 300 = 399700

Incidence rate per 100,000 population for tuberculosis = (New Cases / Total population at risk) x 100,000

= (35 / 399700) x 100,000

= 8.76 per 100,000

b.

Prevalence rate of tuberculosis per 100,000 = (New + Pre-existing cases / Total Population) x 100,000

= (35 + 300) / 400000 x 100,000

= 83.75 per 100,000

c.

Cause-specific death rate per 100,000 for tuberculosis = (Number of deaths / Total population) x 100,000

= (20 / 400000) x 100,000

= 5 per 100,000

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