World Health Organization recommendations are often strong based on low confidence in effect estimates.

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ID: 99308
2014
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Abstract
Expert guideline panelists are sometimes reluctant to offer weak/conditional/contingent recommendations. Grading of Recommendations Assessment, Development and Evaluation (GRADE) guidance warns against strong recommendations when confidence in effect estimates is low or very low, suggesting that such recommendations may seldom be justified. We aim to characterize the classification of strength of recommendations and confidence in estimates in World Health Organization (WHO) guidelines that used the GRADE approach and graded both strength and confidence (GRADEd).We reviewed all WHO guidelines (January 2007 to December 2012), identified those that were GRADEd, and, in these, examined the classifications of strong and weak and associated confidence in estimates (high, moderate, low, and very low).We identified 116 WHO guidelines in which 43 (37%) were GRADEd and had 456 recommendations, of which 289 (63.4%) were strong and 167 (36.6%) were conditional/weak. Of the 289 strong recommendations, 95 (33.0%) were based on evidence warranting low confidence in estimates and 65 (22.5%) on evidence warranting very low confidence in estimates (55.5% strong recommendations overall based on low or very low confidence in estimates).Strong recommendations based on low or very low confidence estimates are very frequently made in WHO guidelines. Further study to determine the reasons for such high uncertainty recommendations is warranted.
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alexander2014worldjournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Alexander, Paul E;Bero, Lisa;Montori, Victor M;Brito, Juan Pablo;Stoltzfus, Rebecca;Djulbegovic, Benjamin;Neumann, Ignacio;Rave, Supriya;Guyatt, Gordon;
Journal journal of clinical epidemiology
Year 2014
DOI
10.1016/j.jclinepi.2013.09.020
URL
Keywords
world health organization clinical practice guidelines grade confidence in effect estimates public health guidelines high uncertainty strength of recommendation

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