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| nnt [2025/02/07 15:00] – andrewtaustin | nnt [2025/02/07 15:09] (current) – [Numbers Needed to Treat (NNT)] andrewtaustin | ||
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| + | ====== Numbers Needed to Treat (NNT) ====== | ||
| The Number Needed to Treat (NNT) is an important concept in evidence-based medicine (EBM). It represents the average number of patients who must be treated with a specific therapy or intervention for one additional patient to benefit compared to a control group (often a placebo or standard of care). The NNT is derived as the inverse of the Absolute Risk Reduction (ARR), providing a practical measure of clinical effectiveness. | The Number Needed to Treat (NNT) is an important concept in evidence-based medicine (EBM). It represents the average number of patients who must be treated with a specific therapy or intervention for one additional patient to benefit compared to a control group (often a placebo or standard of care). The NNT is derived as the inverse of the Absolute Risk Reduction (ARR), providing a practical measure of clinical effectiveness. | ||
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| + | In short, NNT represents the number of patients who must be treated to prevent one additional negative outcome or achieve one additional positive outcome. | ||
| ===== Definition and Calculation ===== | ===== Definition and Calculation ===== | ||