Dietary recommendations for the obese and overweight: A systematic survey of global guidelines

Article type
Authors
Wang Q1, Zhang Q2, Pan B3, Tian J4, Ge L5
1School of Public Health, Lanzhou University
2School of Nursing, Lanzhou University
3Gansu Provincial Hospital,Lanzhou
4Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University
5Evidence-Based Social Science Research Center, School of Public Health, Lanzhou University
Abstract
Background:WHO defined overweight and obesity as abnormal or excessive fat accumulation that presents a huge risk to health. There is great chance that obesity and overweight could trigger and lead to a number of chronic diseases such as hypertension, TypeⅡDiabetes, Sleep apnea, cardiovascular diseases, and even cancers. With the wildly increasing trend of obesity and overweight, it’s urgent to offer reliable instructions for clinicians when making decisions. That’s where guidelines are required. Nowadays, large quantities of guidelines have been published to offer professional guidance for concerning operators. However, recommendations on diet from different guidelines also differ from each other and the quality of these guidelines varies greatly, some of which are too low to be trusted.

Objectives:To systematically appraise the quality of obesity/overweight guidelines which make recommendations on diet and assess the consistency of their dietary recommendations.

Methods:We searched PubMed, Web of Science, Embase as well as main guideline websites including Guidelines International Network (GIN), National Institute for Health and Clinical Excellence (NICE), National Guideline Clearinghouse (NGC), Scottish Intercollegiate Guidelines Network (SIGN) for obesity/overweight guidelines and dietary recommendations. Four researchers independently assessed their methodological and reporting quality using the AGREE II instrument and RIGHT checklist and extracted dietary recommendations on managing obesity/overweight. We will summarize the general characteristics, evidence source information and details of the guideline recommendations using descriptive statistics. We calculate both the mean score and the standard deviation (SD) of all guidelines for each domain of AGREE II instrument. We also summarize the number of reported items and the reporting rate of each domain of the RIGHT checklist for the guidelines. The statistical analysis will be conducted using Excel 2013 (Microsoft Corp, Redmond, Washington, USA, www.microsoft.com).

Results:This study is ongoing and results will be presented at the Cochrane Colloquium as available.

Conclusions:This study is ongoing and results will be presented at the Cochrane Colloquium as available.

Patient or healthcare consumer involvement:Nor patient or healthcare consumer is involved in this study.