The proportion of people with a condition that a test correctly identifies as positive.
Sensitivity is the true-positive rate of a diagnostic or screening test: of everyone who actually has the condition, the percentage the test correctly flags as positive. A highly sensitive test misses few true cases (low false-negative rate), making it useful for ruling a condition out when the result is negative (SnNout). It says nothing about false positives on its own, so it's usually interpreted alongside specificity.
This guide was auto-drafted and is pending editorial review.