A systematic search and qualitative review of reporting bias of lifestyle interventions in randomized controlled trials of diabetes prevention and management.
Background: Scholars have documented presumptions regarding the relationships between diet, exercise, weight, and type 2 diabetes. However, it is unclear to what extent researchers contribute to these presumptions, and how often these relationships are thoroughly delineated within the context of ran...
| Published in: | Nutrition Journal Vol. 17; no. 1 |
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| Main Authors: | , , , , |
| Format: | research Journal Article |
| Published: |
BioMed Central
9/7/2018
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=131649653&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 131649653 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14752891 1CYY jtl: Nutrition Journal issn: 14752891 maglogo: N pubinfo: dt: 9/7/2018 vid: 17 iid: 1 pid: 24147 pub: BioMed Central artinfo: ui: 131649653 131649653 NLM30193589 131649653 10.1186/s12937-018-0390-6 NLM30193589 131649653 ppct: 1 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: A systematic search and qualitative review of reporting bias of lifestyle interventions in randomized controlled trials of diabetes prevention and management. aug: au: Riediger, Natalie D. Bombak, Andrea E. Mudryj, Adriana Bensley, Jackson Ankomah, Samuel affil: Department of Food and Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, University of Manitoba, 407 Human Ecology Building, R3T 2N2, Winnipeg, MB, Canada sug: subj: Life Style Clinical Trials Diabetes Mellitus, Type 2 Epidemiology Treatment Outcomes Diet Diabetes Mellitus, Type 2 Therapy Behavior Therapy Exercise Weight Loss Diabetes Mellitus Complications Body Weight Obesity Complications Adult Diabetes Mellitus, Type 2 Prevention and Control Obesity Therapy Human Validation Studies Comparative Studies Evaluation Research Multicenter Studies Exercise of Self-Care Agency Scale Ferrans and Powers Quality of Life Index Adult: 19-44 years ab: Background: Scholars have documented presumptions regarding the relationships between diet, exercise, weight, and type 2 diabetes. However, it is unclear to what extent researchers contribute to these presumptions, and how often these relationships are thoroughly delineated within the context of randomized controlled trials (RCTs). Thus, the aim was to conduct a systematic search and qualitative, thematic analysis of RCTs focusing on lifestyle interventions for diabetes prevention or management, to examine how researchers discuss body weight in 1) the rationale and design of their RCTs; and 2) their presentation and interpretation of their findings.Methods: We completed an electronic search for records published between 2007 and November 2016. Selection criteria included: RCTs with a follow-up period of ≥12 months; adult participants with type 2 diabetes/pre-diabetes; lifestyle interventions classified as dietary, exercise, and/or behavioural; primary outcomes of incident diabetes and complications, mortality, cardiovascular disease, and quality of life; and secondary outcomes of glycemic control and blood pressure. Nineteen articles were identified for inclusion and subject to thematic content analysis.Results: Obesity and weight loss figured prominently in the rationale and outcomes of the majority of the articles, despite intentional exclusion of "weight loss" and "obesity" as search terms. There was ambiguity over whether weight loss was classified as inclusive to the intervention, an outcome, or a measure of adherence. Results revealed that authors frequently engaged in "spin reporting" by pooling data from intervention and control groups to test the relationship between weight lost and outcomes and in their presentation of results.Conclusions: Researchers need to be aware of their biases and assumptions regarding body weight in designing, analyzing, and interpreting lifestyle interventions for diabetes prevention and management. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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