Source: wikibot/number-needed-to-harm
= Number needed to harm
{wiki=Number_needed_to_harm}
The "Number Needed to Harm" (NNH) is a statistical measure used in clinical studies to quantify the risk of a harmful event resulting from a particular treatment or exposure. It represents the number of patients who need to be exposed to the treatment or intervention for one additional person to experience a harmful outcome compared to a control group.