Which of the following can cause an increase in the prevalence of the disease –
Correct Answer: Longer duration of illness
Description: Derived Factors that increase Prevalence
Prevalence increases with addition of diseased people (immigration)
Prevalence increases with subtraction of healthy people (emigration)
Prevalence increases with prolongation of life in chronic diseases
Prevalence increases with decreased death rate amongst diseased
Derived Factors that decrease Prevalence
Prevalence decreases with addition of healthy people (immigration)
Prevalence decreases with subtraction of diseased people (emigration)
Prevalence decreases with increased cure rates
Prevalence decreases with increased death rates
Prevalence decreases with preventive programs such as immunization (which prevent new cases from occurring).
Category:
Social & Preventive Medicine
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