<prompt> True about PPV isIncreases with prevalenceDecreases with prevalenceNo relation with prevalenceAccuracy  <response>: The predictive value of a positive test indicates the probability that a patient with a positive test result does indeed have the disease in question. The more prevalent a disease, the more accurate will be the predictive value of a positive screening test. Ref: 25th edition, Parks Textbook of Preventive and Social Medicine, Page no. 153 