Physics · Epidemiology and Public Health Statistics
A community health nurse wants to estimate the relationship between prevalence, incidence rate, and average duration of a disease. Which of the following formulas is correct for rare diseases (prevalence < 10%) under steady state conditions?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Average Duration = (Incidence Rate) ÷ (Prevalence)
- 2Incidence = (Prevalence) × (Average Duration of Disease)
- 3Prevalence = (Incidence Rate) × (Average Duration of Disease)✓
- 4Prevalence = (Incidence Rate) ÷ (Average Duration of Disease)
Correct answer
Prevalence = (Incidence Rate) × (Average Duration of Disease)
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