Prevalence of disease high=high PPV=high pretest probability
NPV varies inversely with prevalence or pretest probability
p. 257 of FA
If more people have the disease in your population, then the chance of a positive test result actually being positive will increase -- more people have the disease, so you're more likely to be "right"
submitted by โpparalpha(93)
Prevalence of disease high=high PPV=high pretest probability
NPV varies inversely with prevalence or pretest probability
p. 257 of FA