USDA Nutrition Evidence Library: methodology used to identify topics and develop systematic review questions for the birth-to–24-mo population

Obbagy, Julie; Blum‐Kemelor, Donna; Essery, Eve V.; Lyon, Joan; Spahn, Joanne

doi:10.3945/ajcn.113.071670

Cited by 59 publications

(27 citation statements)

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“…Two of 32 included dietary guidelines reported the methods used to extract data. The United States used the NEL methodology and dual coding, 16 and Norway used the World Cancer Research Fund methodology. 32…”

Section: Resultsmentioning

confidence: 99%

“…The US guidelines used AMSTAR to assess the risk of bias of included systematic reviews and the NEL Bias Assessment Tool for individual studies. 16 , 22 German guidelines used the WHO levels of evidence, and the Australian guidelines used the Australian National Health and Medical Research Council (NHMRC) levels of evidence hierarchy (eg, randomized controlled trials rated higher than cohort studies) to assess risk of bias of individual studies.…”

Section: Resultsmentioning

confidence: 99%

“…1 , 12–15 For example, the United States Department of Agriculture’s Nutrition Evidence Library (NEL) conducts systematic reviews that provide evidence to inform their guidelines. 16 The World Health Organization’s (WHO) Nutrition Guidance Expert Advisory Group (NUGAG) also uses evidence-informed methods as the basis for their guidelines. 4 , 17…”

Section: Introductionmentioning

confidence: 99%

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An analysis of methods used to synthesize evidence and grade recommendations in food-based dietary guidelines

et al. 2018

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Evidence-informed guideline development methods underpinned by systematic reviews ensure that guidelines are transparently developed, free from overt bias, and based on the best available evidence. Only recently has the nutrition field begun using these methods to develop public health nutrition guidelines. Given the importance of following an evidence-informed approach and recent advances in related methods, this study sought to describe the methods used to synthesize evidence, rate evidence quality, grade recommendations, and manage conflicts of interest (COIs) in national food-based dietary guidelines (FBDGs). The Food and Agriculture Organization’s FBDGs database was searched to identify the latest versions of FBDGs published from 2010 onward. Relevant data from 32 FBDGs were extracted, and the findings are presented narratively. This study shows that despite advances in evidence-informed methods for developing dietary guidelines, there are variations and deficiencies in methods used to review evidence, rate evidence quality, and grade recommendations. Dietary guidelines should follow systematic and transparent methods and be informed by the best available evidence, while considering important contextual factors and managing conflicts of interest.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An analysis of methods used to synthesize evidence and grade recommendations in food-based dietary guidelines

et al. 2018

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“…The Pregnancy and Birth to 24 Months Project was an initiative of the US Departments of Agriculture and Health and Human Services (1)(2)(3). During the Project, the US Department of Agriculture Nutrition Evidence Systematic Review (NESR) team (previously the Nutrition Evidence Library, or NEL) collaborated with external experts to complete a series of de novo systematic reviews (SRs) of primary evidence that examined food Systematic review questions:…”

Section: Introductionmentioning

confidence: 99%

“…Evidence examining the relationship between shorter versus longer durations of exclusive human milk feeding and metabolic syndrome in childhood1 …”

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confidence: 99%

Infant milk-feeding practices and cardiovascular disease outcomes in offspring: a systematic review

Güngör¹,

Nadaud²,

LaPergola³

et al. 2019

The American Journal of Clinical Nutrition

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Background During the Pregnancy and Birth to 24 Months Project, the US Departments of Agriculture and Health and Human Services initiated a review of evidence on diet and health in these populations. Objectives The aim of these systematic reviews was to examine the relation of 1) never versus ever feeding human milk, 2) shorter versus longer durations of any human milk feeding, 3) shorter versus longer durations of exclusive human milk feeding, and 4) lower versus higher intensities of human milk fed to mixed-fed infants with intermediate and endpoint cardiovascular disease (CVD) outcomes in offspring. Methods The Nutrition Evidence Systematic Review team conducted systematic reviews with external experts. We searched CINAHL, Cochrane, Embase, and PubMed for articles published January 1980–March 2016, dual-screened the results using predetermined criteria, extracted data from and assessed the risk of bias for each included study, qualitatively synthesized the evidence, developed conclusion statements, and graded the strength of the evidence. Results The 4 systematic reviews included 13, 24, 6, and 0 articles, respectively. The evidence was insufficient to draw conclusions about endpoint CVD outcomes across all 4 systematic reviews. Limited evidence suggests that never versus ever being fed human milk is associated with higher blood pressure within a normal range at 6–7 y of age. Moderate evidence suggests there is no association between the duration of any human milk feeding and childhood blood pressure. Limited evidence suggests there is no association between the duration of exclusive human milk feeding and blood pressure or metabolic syndrome in childhood. Additional evidence about intermediate outcomes for the 4 systematic reviews was scant or inconclusive. Conclusions There is insufficient evidence to draw conclusions about the relationships between infant milk-feeding practices and endpoint CVD outcomes; however, some evidence suggests that feeding less or no human milk is not associated with childhood hypertension.

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Laying the Foundation for Expanding the Dietary Guidelines for Americans to Address Children from Birth to 24 Months and Women Who Are Pregnant

Altman¹,

Spahn²,

Stoody³

et al. 2015

Journal of the Academy of Nutrition and Dietetics

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USDA Nutrition Evidence Library: methodology used to identify topics and develop systematic review questions for the birth-to–24-mo population

Cited by 59 publications

References 1 publication

An analysis of methods used to synthesize evidence and grade recommendations in food-based dietary guidelines

An analysis of methods used to synthesize evidence and grade recommendations in food-based dietary guidelines

Infant milk-feeding practices and cardiovascular disease outcomes in offspring: a systematic review

Laying the Foundation for Expanding the Dietary Guidelines for Americans to Address Children from Birth to 24 Months and Women Who Are Pregnant

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