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Heterogeneity of associations between total and types of fish intake and the incidence of type 2 diabetes: Federated meta-analysis of 28 prospective studies including 956,122 participants

Pastorino, S; Bishop, T; Sharp, SJ; Pearce, M; Akbaraly, T; Barbieri, NB; Bes-Rastrollo, M; ... Forouhi, NG; + view all (2021) Heterogeneity of associations between total and types of fish intake and the incidence of type 2 diabetes: Federated meta-analysis of 28 prospective studies including 956,122 participants. Nutrients , 13 (4) , Article 1223. 10.3390/nu13041223. Green open access

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Abstract

The association between fish consumption and new-onset type 2 diabetes is inconsistent and differs according to geographical location. We examined the association between the total and types of fish consumption and type 2 diabetes using individual participant data from 28 prospective cohort studies from the Americas (6), Europe (15), the Western Pacific (6), and the Eastern Mediterranean (1) comprising 956,122 participants and 48,084 cases of incident type 2 diabetes. Incidence rate ratios (IRRs) for associations of total fish, shellfish, fatty, lean, fried, freshwater, and saltwater fish intake and type 2 diabetes were derived for each study, adjusting for a consistent set of con-founders and combined across studies using random-effects meta-analysis. We stratified all analyses by sex due to observed interaction (p = 0.002) on the association between fish and type 2 diabe-tes. In women, for each 100 g/week higher intake the IRRs (95% CIs) of type 2 diabetes were 1.02 (1.01–1.03, I = 61%) for total fish, 1.04 (1.01–1.07, I = 46%) for fatty fish, and 1.02 (1.00–1.04, I = 33%) for lean fish. In men, all associations were null. In women, we observed variation by geographical location: IRRs for total fish were 1.03 (1.02–1.04, I = 0%) in the Americas and null in other regions. In conclusion, we found evidence of a neutral association between total fish intake and type 2 diabetes in men, but there was a modest positive association among women with heterogeneity across studies, which was partly explained by geographical location and types of fish intake. Future research should investigate the role of cooking methods, accompanying foods and environmental pol-lutants, but meanwhile, existing dietary regional, national, or international guidelines should con-tinue to guide fish consumption within overall healthy dietary patterns.

Type: Article
Title: Heterogeneity of associations between total and types of fish intake and the incidence of type 2 diabetes: Federated meta-analysis of 28 prospective studies including 956,122 participants
Open access status: An open access version is available from UCL Discovery
DOI: 10.3390/nu13041223
Publisher version: http://doi.org/10.3390/nu13041223
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: type 2 diabetes; fish; federated meta-analysis; prospective studies
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health > Epidemiology and Public Health
URI: https://discovery.ucl.ac.uk/id/eprint/10126527
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