number needed to harm

noun

The number of people, statistically, who must be exposed to something in order for one of them to experience an adverse effect.

Similar
NNH
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Meanings

nounnumber needed to harm (plural numbers needed to harm)

plural numbers needed to harm

  1. The number of people, statistically, who must be exposed to something in order for one of them to experience an adverse effect.

    Synonyms: NNH

Synonyms & antonyms

nounThe number of people, statistically, who must be exposed to something in order for one of them to experience an adverse effect.

Similar
NNH
Cite this entry
APA

number needed to harm. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/number%20needed%20to%20harm

MLA

“number needed to harm.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/number%20needed%20to%20harm. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “number needed to harm,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/number%20needed%20to%20harm.

Source: number needed to harm on Wiktionary, CC BY-SA 4.0.