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
Most number of false positives by a screening test is becuase of?
assistant
The correct answer is  Ref :Parks 23rd edition pg 140. PPV decreases as prevalence decreases. As PPV decreases it means that TP is decreasing. This is accompanied by an increase in FP PPV =TP /(TP +FP)