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LR− Calculator

Compute negative likelihood ratio LR⁻ = (1 − sens) / spec.

Input Data

Input Sensitivity sens.
Input Specificity spec.

Results

0.222222
LR⁻ = (1 − sens) / spec.

At a glance:LR− Calculator: enter parameters to compute results; complements related calculators.

Formula

LR⁻ = (1 − sens) / spec.

How to Use

  1. Enter sensitivity and specificity.
  2. It returns LR−.

Case Studies

sens=0.8, spec=0.9 → LR−≈0.222

LR− = 0.2/0.9 ≈ 0.222.

FAQ

How small is a good LR−?

LR− < 0.1 strongly rules out disease; near 1 has no discrimination.

Related Tools

References

Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.

Found a problem with the results?

If this calculator's result is wrong, or you have any question about the calculation logic, please let us know. You are viewing:LR− Calculator/statistics/likelihood-ratio-negative)。