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What is Which of the following increases the prevalence ofthe diseaseaEUR' and explain in detail?
Increase in duration of disease [Ref: Park 20/e, p 58 (19/e, p 56, 57)J Prevalence refers "to all current cases (old + new) existing at a given point in time (point prevalence) or over a period of time (period prevalence) in a given population" It thus includes all the new cases, as well as those old persisting cases. It depends on 2 factors i. incidence of disease (I) ii.duration of disease (D) Thus, the longer the duration of disease, the greater its prevalence.