Literature DB >> 25830454

The numbers needed to treat and harm (NNT, NNH) statistics: what they tell us and what they do not.

Chittaranjan Andrade1.   

Abstract

Research papers and research summaries frequently present information in the form of derived statistics such as the number needed to treat (NNT) and the number needed to harm (NNH). These statistics are not always correctly understood by the reader. This article explains what NNT and NNH mean; presents a simple, nontechnical explanation for the calculation of the NNT; addresses the interpretation of the NNT; considers applications of the NNT; and discusses the limitations of this statistic. The NNH is also briefly considered. © Copyright 2015 Physicians Postgraduate Press, Inc.

Mesh：

Year:  2015        PMID： 25830454     DOI： 10.4088/JCP.15f09870

Source DB:  PubMed          Journal:  J Clin Psychiatry        ISSN： 0160-6689            Impact factor:   4.384


  7 in total

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Authors:  Chittaranjan Andrade
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Journal:  Clin J Pain       Date:  2022-11-01       Impact factor: 3.423

3.  How to Read a Research Paper: An Exercise Using a Study on Continuation vs. Discontinuation of Antidepressants during Pregnancy.

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Journal:  Indian J Psychol Med       Date:  2018 Nov-Dec

Review 4.  Effectiveness, tolerability and practical application of the newer generation anti-obesity medications.

Authors:  Jeffrey S MacDaniels; Thomas L Schwartz
Journal:  Drugs Context       Date:  2016-03-08

5.  Treatment after traumatic shoulder dislocation: a systematic review with a network meta-analysis.

Authors:  Lauri Kavaja; Tuomas Lähdeoja; Antti Malmivaara; Mika Paavola
Journal:  Br J Sports Med       Date:  2018-06-23       Impact factor: 13.800

6.  Different impacts of various tocolytic agents on increased risk of postoperative hemorrhage in preterm labor women undergoing Cesarean delivery: A population-based cohort study.

Authors:  Hua-Lin Lee; Kuo-Ching Lu; Jossen Foo; I-Tao Huang; Yen-Chun Fan; Pei-Shan Tsai; Chun-Jen Huang
Journal:  Medicine (Baltimore)       Date:  2020-12-11       Impact factor: 1.817

7.  Efficacy and Tolerability of Combination Treatments for Major Depression: Antidepressants plus Second-Generation Antipsychotics vs. Esketamine vs. Lithium.

Authors:  Gustavo H Vázquez; Anees Bahji; Juan Undurraga; Leonardo Tondo; Ross J Baldessarini
Journal:  J Psychopharmacol       Date:  2021-07-09       Impact factor: 4.153
  7 in total

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