system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
When prevalance increases, which of the following may be decreased-
assistant
The correct answer is  Ans. is `c' i.e., Death rate o Decreases in death rate may increase in prevalance because of prolongation of life in chronic disease. o Decreases in incidence or duration, causes decrease in prevalance