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Dietary vitamin D intake and risk of type 2 diabetes in the European Prospective Investigation into Cancer and Nutrition: the EPIC-InterAct study


Abbas, S; Linseisen, J; Rohrmann, Sabine; Beulens, J W J; Buijsse, B; Amiano, P; Ardanaz, E; Balkau, B; Boeing, H; Clavel-Chapelon, F; Fagherazzi, G; Franks, P W; Gavrila, D; Grioni, S; Kaaks, R; Key, T J; Khaw, K T; Kühn, T; Mattiello, A; Molina-Montes, E; Nilsson, P M; Overvad, K; Quirós, J R; Rolandsson, O; Sacerdote, C; Saieva, C; Slimani, N; Sluijs, I; Spijkerman, A M W; Tjonneland, A; Tumino, R; van der A, D L; Zamora-Ros, R; Sharp, S J; Langenberg, C; Forouhi, N G; Riboli, E; Wareham, N J (2014). Dietary vitamin D intake and risk of type 2 diabetes in the European Prospective Investigation into Cancer and Nutrition: the EPIC-InterAct study. European Journal of Clinical Nutrition, 68(2):196-202.

Abstract

Background/Objectives:Prospective cohort studies have indicated that serum vitamin D levels are inversely related to risk of type 2 diabetes. However, such studies cannot determine the source of vitamin D. Therefore, we examined the association of dietary vitamin D intake with incident type 2 diabetes within the European Prospective Investigation into Cancer and Nutrition (EPIC)-InterAct study in a heterogeneous European population including eight countries with large geographical variation.Subjects/Methods:Using a case-cohort design, 11 245 incident cases of type 2 diabetes and a representative subcohort (N=15 798) were included in the analyses. Hazard ratios (HR) and 95% confidence intervals (CIs) for type 2 diabetes were calculated using a Prentice-weighted Cox regression adjusted for potential confounders. Twenty-four-hour diet-recall data from a subsample (N=2347) were used to calibrate habitual intake data derived from dietary questionnaires.Results:Median follow-up time was 10.8 years. Dietary vitamin D intake was not significantly associated with the risk of type 2 diabetes. HR and 95% CIs for the highest compared to the lowest quintile of uncalibrated vitamin D intake was 1.09 (0.97-1.22) (Ptrend=0.17). No associations were observed in a sex-specific analysis. The overall pooled effect (HR (95% CI)) using the continuous calibrated variable was 1.00 (0.97-1.03) per increase of 1 μg/day dietary vitamin D.Conclusions:This observational study does not support an association between higher dietary vitamin D intake and type 2 diabetes incidence. This result has to be interpreted in light of the limited contribution of dietary vitamin D on the overall vitamin D status of a person.European Journal of Clinical Nutrition advance online publication, 20 November 2013; doi:10.1038/ejcn.2013.235.

Abstract

Background/Objectives:Prospective cohort studies have indicated that serum vitamin D levels are inversely related to risk of type 2 diabetes. However, such studies cannot determine the source of vitamin D. Therefore, we examined the association of dietary vitamin D intake with incident type 2 diabetes within the European Prospective Investigation into Cancer and Nutrition (EPIC)-InterAct study in a heterogeneous European population including eight countries with large geographical variation.Subjects/Methods:Using a case-cohort design, 11 245 incident cases of type 2 diabetes and a representative subcohort (N=15 798) were included in the analyses. Hazard ratios (HR) and 95% confidence intervals (CIs) for type 2 diabetes were calculated using a Prentice-weighted Cox regression adjusted for potential confounders. Twenty-four-hour diet-recall data from a subsample (N=2347) were used to calibrate habitual intake data derived from dietary questionnaires.Results:Median follow-up time was 10.8 years. Dietary vitamin D intake was not significantly associated with the risk of type 2 diabetes. HR and 95% CIs for the highest compared to the lowest quintile of uncalibrated vitamin D intake was 1.09 (0.97-1.22) (Ptrend=0.17). No associations were observed in a sex-specific analysis. The overall pooled effect (HR (95% CI)) using the continuous calibrated variable was 1.00 (0.97-1.03) per increase of 1 μg/day dietary vitamin D.Conclusions:This observational study does not support an association between higher dietary vitamin D intake and type 2 diabetes incidence. This result has to be interpreted in light of the limited contribution of dietary vitamin D on the overall vitamin D status of a person.European Journal of Clinical Nutrition advance online publication, 20 November 2013; doi:10.1038/ejcn.2013.235.

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Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Epidemiology, Biostatistics and Prevention Institute (EBPI)
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2014
Deposited On:21 Jan 2014 13:38
Last Modified:07 Dec 2017 08:08
Publisher:Nature Publishing Group
ISSN:0954-3007
Free access at:PubMed ID. An embargo period may apply.
Publisher DOI:https://doi.org/10.1038/ejcn.2013.235
PubMed ID:24253760

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