Likelihood ratio (LR) | Calculation | Change in probability of success or failure |
LR positive | Sensitivity/(1-specificity) | LR = 1-2, none/minimal |
LR = 2-5, small | ||
LR = 5-10, moderate | ||
LR >10 = large | ||
LR negative | (1-sensitivity)/specificity | LR = 0.5-1, none/minimal |
LR = 0.3-0.5, small | ||
LR = 0.1-0.3, moderate | ||
LR <0.1 = large |
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