How do you interpret a positive likelihood ratio

How do you interpret a positive likelihood ratio

How do you interpret a clinical test result if the positive likelihood ratio (plr) is high (>2) and the negative likelihood ratio (nlr) is very low(<0.5)?For example, you hav e a patient with anaemia and a serum ferritin of 60mmol/l and you find in an.This is an im …A lr of 5 will moderately increase the probability of a disease, given a positive test.The sensitivity and specificity of the.The likelihood ratio for a positive result (lr+) tells you how much the odds of the disease increase when a test is positive.

Within this context, using the conditional probabilities in the numerator and denominator.The ratio is meant to compare the two hypotheses to see which seems more likely given the data.1) the potential utility of a particular diagnostic test, and 2) how likely it is that a patient has a disease or condition.

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