Dietary advice for the prevention of type 2 diabetes mellitus in adults

Hdl Handle:
http://hdl.handle.net/10149/92337
Title:
Dietary advice for the prevention of type 2 diabetes mellitus in adults
Authors:
Nield, L. (Lucie); Summerbell, C. D. (Carolyn); Hooper, L. (Lee); Whittaker, V. J. (Victoria); Moore, H. J. (Helen)
Affiliation:
University of Teesside. School of Health and Social Care; University of Teesside. Postgraduate Institute of Health.
Citation:
Nield, L. et al. (2008) 'Dietary advice for the prevention of type 2 diabetes mellitus in adults', The Cochrane Database of Systematic Reviews; 3: pp.1-46.
Publisher:
Wiley-Blackwell
Journal:
The Cochrane Database of Systematic Reviews
Issue Date:
2008
URI:
http://hdl.handle.net/10149/92337
DOI:
10.1002/14651858.CD005102.pub2
Abstract:
Background: Prevention of type 2 diabetes in adults is a far better option than treatment, to alleviate pressure on health care providers and resources. However, there is no current review of the evidence regarding the efficacy of a diet-only intervention for prevention. Objectives: To assess the effects of type and frequency of dietary advice for the prevention of type 2 diabetes mellitus. Search strategy: We carried out a comprehensive search of The Cochrane Library, MEDLINE, EMBASE, CINAHL, AMED, bibliographies and contacted relevant experts. Selection criteria: All randomised controlled trials, of twelve months or longer, in which dietary advice for the prevention of type 2 diabetes was the only intervention in adults. Data collection and analysis: The lead investigator performed all data extraction and quality scoring with duplication being carried out by one of the other four investigators independently with discrepancies resolved by discussion and consensus. Authors were contacted for missing data. Change data are presented. Main results: Two trials which randomised 358 people to dietary treatment and control groups were identified. Longest duration of follow-up was six years. In the 6-year Da Qing IGT & Diabetes study, the incidence of type 2 diabetes in the control group was 67.7% (95% confidence interval (CI) 59.8% to 75.2%) which was reduced to 43.8% (95% CI 35.5% to 54.7%) in the diet group. Overall, the dietary intervention group had a 33% reduction in the incidence of diabetes after six years (P < 0.03). The Oslo Diet & Exercise Study (ODES) found significant (P<0.05) reductions in insulin resistance, fasting insulin (pmol/L), fasting C-peptide (pmol/L), fasting proinsulin (pmol/L), fasting blood glucose (mmol/L), BMI (kg/m²), mBP (mmHg) and fasting triglycerides (mmol/L), and a significant increase in fasting HDL cholesterol (mmol/L) and PAI-1 (U/ml) after 12 months of dietary intervention. Data on mortality, morbidity, health-related quality of life, adverse effects, costs were not reported in either study. Authors' conclusions: There are no high quality data on the efficacy of dietary intervention for the prevention of type 2 diabetes. More well-designed, long-term studies, providing well-reported, high-quality data are required before proper conclusions can be made into the best dietary advice for the prevention of diabetes mellitus in adults.
Type:
Article
Language:
en
Keywords:
diet; advice; prevention; type 2 diabetes; adults; dietary
Rights:
In return for the grant of the licence, the author(s) shall have the following rights: The right to post the review as an electronic file on the author's own website and/or the author's institution's website, using the PDF version of the review available in the Cochrane Database of Systematic Reviews. [Advice from CEO of The Cochrane Collaboration]
Citation Count:
0 [Scopus, 17/02/2010]

Full metadata record

DC FieldValue Language
dc.contributor.authorNield, L. (Lucie)en
dc.contributor.authorSummerbell, C. D. (Carolyn)en
dc.contributor.authorHooper, L. (Lee)en
dc.contributor.authorWhittaker, V. J. (Victoria)en
dc.contributor.authorMoore, H. J. (Helen)en
dc.date.accessioned2010-02-17T10:56:29Z-
dc.date.available2010-02-17T10:56:29Z-
dc.date.issued2008-
dc.identifier.citationThe Cochrane Database of Systematic Reviews, 2008; 3: 1-46en
dc.identifier.doi10.1002/14651858.CD005102.pub2-
dc.identifier.urihttp://hdl.handle.net/10149/92337-
dc.description.abstractBackground: Prevention of type 2 diabetes in adults is a far better option than treatment, to alleviate pressure on health care providers and resources. However, there is no current review of the evidence regarding the efficacy of a diet-only intervention for prevention. Objectives: To assess the effects of type and frequency of dietary advice for the prevention of type 2 diabetes mellitus. Search strategy: We carried out a comprehensive search of The Cochrane Library, MEDLINE, EMBASE, CINAHL, AMED, bibliographies and contacted relevant experts. Selection criteria: All randomised controlled trials, of twelve months or longer, in which dietary advice for the prevention of type 2 diabetes was the only intervention in adults. Data collection and analysis: The lead investigator performed all data extraction and quality scoring with duplication being carried out by one of the other four investigators independently with discrepancies resolved by discussion and consensus. Authors were contacted for missing data. Change data are presented. Main results: Two trials which randomised 358 people to dietary treatment and control groups were identified. Longest duration of follow-up was six years. In the 6-year Da Qing IGT & Diabetes study, the incidence of type 2 diabetes in the control group was 67.7% (95% confidence interval (CI) 59.8% to 75.2%) which was reduced to 43.8% (95% CI 35.5% to 54.7%) in the diet group. Overall, the dietary intervention group had a 33% reduction in the incidence of diabetes after six years (P < 0.03). The Oslo Diet & Exercise Study (ODES) found significant (P<0.05) reductions in insulin resistance, fasting insulin (pmol/L), fasting C-peptide (pmol/L), fasting proinsulin (pmol/L), fasting blood glucose (mmol/L), BMI (kg/m²), mBP (mmHg) and fasting triglycerides (mmol/L), and a significant increase in fasting HDL cholesterol (mmol/L) and PAI-1 (U/ml) after 12 months of dietary intervention. Data on mortality, morbidity, health-related quality of life, adverse effects, costs were not reported in either study. Authors' conclusions: There are no high quality data on the efficacy of dietary intervention for the prevention of type 2 diabetes. More well-designed, long-term studies, providing well-reported, high-quality data are required before proper conclusions can be made into the best dietary advice for the prevention of diabetes mellitus in adults.en
dc.language.isoenen
dc.publisherWiley-Blackwellen
dc.rightsIn return for the grant of the licence, the author(s) shall have the following rights: The right to post the review as an electronic file on the author's own website and/or the author's institution's website, using the PDF version of the review available in the Cochrane Database of Systematic Reviews. [Advice from CEO of The Cochrane Collaboration]en
dc.subjectdieten
dc.subjectadviceen
dc.subjectpreventionen
dc.subjecttype 2 diabetesen
dc.subjectadultsen
dc.subjectdietaryen
dc.titleDietary advice for the prevention of type 2 diabetes mellitus in adultsen
dc.typeArticleen
dc.contributor.departmentUniversity of Teesside. School of Health and Social Care; University of Teesside. Postgraduate Institute of Health.en
dc.identifier.journalThe Cochrane Database of Systematic Reviewsen
ref.citationcount0 [Scopus, 17/02/2010]en
or.citation.harvardNield, L. et al. (2008) 'Dietary advice for the prevention of type 2 diabetes mellitus in adults', The Cochrane Database of Systematic Reviews; 3: pp.1-46.-
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