Prevalence of a disease -: (A) Is the best measure of disease frequency in etiological studies, (B) Can only be determined by a coho study, (C) Is the number of new cases in a defined population, (D) Describes the balance between incidence, moality and recovery
Answer is D. Ref : Parks 23rd edition pg 61 Prevalence values describe the balance between incidence, moality and recovery. Increased incidence can increase prevalence. Increased moality decreases prevalence. Increased recovery also decreases prevalence. Note : Incidence is the best measure of disease frequency in etiological studies (coho study)