What does NNT (number needed to treat) indicate?

• A. Number of patients needed for a study
• B. Number of patients treated for 1 additional positive outcome
• C. Total number of patients participating in treatment
• D. Number of treatments required to achieve a cure

Answer: (B)

The number needed to treat (NNT) is a crucial statistic in evidence-based practice that quantifies the effectiveness of a treatment or intervention. Specifically, it indicates the number of patients that need to be treated to achieve one additional positive outcome compared to a control group. This measure helps clinicians and researchers assess the practical relevance of research findings, guiding them in decision-making and treatment planning.

In clinical settings, a lower NNT means the treatment is more effective, as it requires fewer patients to benefit from the intervention. Understanding NNT allows healthcare providers to weigh the benefits of a treatment against potential risks or side effects and make informed decisions about the best course of action for their patients.