The Positive predictive value (True PositivA study began with 30% of both Group A and Group B being over 65 years of age. During the study period no new participants joined, but 40 people under 65 in group A and 50 people over 65 in Group B dropped out. Which statement correctly describes the ratio of the percentage of Group A that are over 65 to the percentage of Group B that are over 65 years of age at the end of the study ?e results/(True Positive results False Positive results)) goes down as a disease becomes less and less prevalent because