Journal
JOURNAL OF DIABETES
Volume 10, Issue 8, Pages 665-674Publisher
WILEY
DOI: 10.1111/1753-0407.12654
Keywords
cohort study; dietary patterns; micronutrients; principal component analysis; type 2 diabetes mellitus
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Funding
- Mutuelle Generale de l'Education Nationale (MGEN)
- Gustave Roussy Institute
- French League against Cancer
- European Union (Sixth European Community Framework Programme) InterAct project [LSHM-CT-2006-037197]
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BackgroundMicronutrients play a key role in type 2 diabetes mellitus (T2DM), but methodological difficulties arise from their collinearity and interdependencies with foods. The aim of the present study was to identify micronutrient dietary patterns in the E3N-EPIC (Etude Epidemiologique aupres de femmes de l'Education Nationale) cohort and to investigate their association with risk of T2DM. MethodsPrincipal component analysis was used to identify micronutrient patterns among 71 270 women from the E3N-EPIC cohort. Associations between micronutrient patterns and risk of T2DM were quantified by hazard ratios (HRs) and 95% confidence intervals (CIs) from Cox proportional hazards regression models, adjusted for potential confounders. ResultsSix micronutrient patterns were identified explaining 78% of the total variance in micronutrient intake. A positive association was found between T2DM and a pattern highly correlated with intake of vitamins B-2 and B-5 (HR 1.34; 95% CI 1.16-1.56). Similarly, a positive association was found with a pattern characterized by high intakes of vitamin B-12 and retinol, and a low intake of vitamin C (HR 1.30; 95% CI 1.15-1.48). An inverse association was observed between T2DM and another two patterns: one correlated with magnesium and vitamin B-3 (HR 0.75; 95% CI 0.66-0.86), and the other correlated with manganese intake (HR 0.82; 95% CI 0.72-0.94). ConclusionsThe findings of the present study identify micronutrients that have an effect on the risk of T2DM, and enable better understanding of the complexity of the diet when investigating the association between micronutrients and T2DM.
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