Likelihood Ratios

LR

Interpretation

> 10

Large and often conclusive increase in the likelihood of disease

5 - 10

Moderate increase in the likelihood of disease

2 - 5

Small increase in the likelihood of disease

1 - 2

Minimal increase in the likelihood of disease

1

No change in the likelihood of disease

0.5 - 1.0

Minimal decrease in the likelihood of disease

0.2 - 0.5

Small decrease in the likelihood of disease

0.1 - 0.2

Moderate decrease in the likelihood of disease

< 0.1

Large and often conclusive decrease in the likelihood of disease