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Dietary fiber intake and risk of type 2 diabetes: a dose-response analysis of prospective studies.
Eur J Epidemiol. 2014 Feb; 29(2):79-88.EJ

Abstract

Observational studies suggest an association between dietary fiber intake and risk of type 2 diabetes, but the results are inconclusive. We conducted a meta-analysis of prospective studies evaluating the associations of dietary fiber intake and risk of type 2 diabetes. Relevant studies were identified by searching EMBASE (from 1974 to April 2013) and PubMed (from 1966 to April 2013). The fixed or random-effect model was selected based on the homogeneity test among studies. In addition, a 2-stage random-effects dose-response meta-analysis was performed. We identified 17 prospective cohort studies of dietary fiber intake and risk of type 2 diabetes involving 19,033 cases and 488,293 participants. The combined RR (95 % CI) of type 2 diabetes for intake of total dietary fiber, cereal fiber, fruit fiber and insoluble fiber was 0.81 (0.73-0.90), 0.77 (0.69-0.85), 0.94 (0.88-0.99) and 0.75 (0.63-0.89), respectively. A nonlinear relationship was found of total dietary fiber intake with risk of type 2 diabetes (P for nonlinearity < 0.01), and the RRs (95 % CI) of type 2 diabetes were 0.98 (0.90-1.06), 0.97 (0.87-1.07), 0.89 (0.80-0.99), 0.76 (0.65-0.88), and 0.66 (0.53-0.82) for 15, 20, 25, 30, and 35 g/day. The departure from nonlinear relationship was not significant (P for nonlinearity = 0.72), and the risk of type 2 diabetes decreased by 6 % (RR 0.94, 95 % CI 0.93-0.96) for 2 g/day increment in cereal fiber intake. Findings from this meta-analysis indicate that the intakes of dietary fiber may be inversely associated with risk of type 2 diabetes.

Authors+Show Affiliations

Shanghai Minhang Center for Disease Control and Prevention, 965 Zhongyi Road, Shanghai, 201101, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Meta-Analysis

Language

eng

PubMed ID

24389767

Citation

Yao, Baodong, et al. "Dietary Fiber Intake and Risk of Type 2 Diabetes: a Dose-response Analysis of Prospective Studies." European Journal of Epidemiology, vol. 29, no. 2, 2014, pp. 79-88.
Yao B, Fang H, Xu W, et al. Dietary fiber intake and risk of type 2 diabetes: a dose-response analysis of prospective studies. Eur J Epidemiol. 2014;29(2):79-88.
Yao, B., Fang, H., Xu, W., Yan, Y., Xu, H., Liu, Y., Mo, M., Zhang, H., & Zhao, Y. (2014). Dietary fiber intake and risk of type 2 diabetes: a dose-response analysis of prospective studies. European Journal of Epidemiology, 29(2), 79-88. https://doi.org/10.1007/s10654-013-9876-x
Yao B, et al. Dietary Fiber Intake and Risk of Type 2 Diabetes: a Dose-response Analysis of Prospective Studies. Eur J Epidemiol. 2014;29(2):79-88. PubMed PMID: 24389767.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dietary fiber intake and risk of type 2 diabetes: a dose-response analysis of prospective studies. AU - Yao,Baodong, AU - Fang,Hong, AU - Xu,Wanghong, AU - Yan,Yujie, AU - Xu,Huilin, AU - Liu,Yinan, AU - Mo,Miao, AU - Zhang,Hua, AU - Zhao,Yanping, Y1 - 2014/01/05/ PY - 2013/07/04/received PY - 2013/12/27/accepted PY - 2014/1/7/entrez PY - 2014/1/7/pubmed PY - 2014/5/6/medline SP - 79 EP - 88 JF - European journal of epidemiology JO - Eur. J. Epidemiol. VL - 29 IS - 2 N2 - Observational studies suggest an association between dietary fiber intake and risk of type 2 diabetes, but the results are inconclusive. We conducted a meta-analysis of prospective studies evaluating the associations of dietary fiber intake and risk of type 2 diabetes. Relevant studies were identified by searching EMBASE (from 1974 to April 2013) and PubMed (from 1966 to April 2013). The fixed or random-effect model was selected based on the homogeneity test among studies. In addition, a 2-stage random-effects dose-response meta-analysis was performed. We identified 17 prospective cohort studies of dietary fiber intake and risk of type 2 diabetes involving 19,033 cases and 488,293 participants. The combined RR (95 % CI) of type 2 diabetes for intake of total dietary fiber, cereal fiber, fruit fiber and insoluble fiber was 0.81 (0.73-0.90), 0.77 (0.69-0.85), 0.94 (0.88-0.99) and 0.75 (0.63-0.89), respectively. A nonlinear relationship was found of total dietary fiber intake with risk of type 2 diabetes (P for nonlinearity < 0.01), and the RRs (95 % CI) of type 2 diabetes were 0.98 (0.90-1.06), 0.97 (0.87-1.07), 0.89 (0.80-0.99), 0.76 (0.65-0.88), and 0.66 (0.53-0.82) for 15, 20, 25, 30, and 35 g/day. The departure from nonlinear relationship was not significant (P for nonlinearity = 0.72), and the risk of type 2 diabetes decreased by 6 % (RR 0.94, 95 % CI 0.93-0.96) for 2 g/day increment in cereal fiber intake. Findings from this meta-analysis indicate that the intakes of dietary fiber may be inversely associated with risk of type 2 diabetes. SN - 1573-7284 UR - https://www.unboundmedicine.com/medline/citation/24389767/Dietary_fiber_intake_and_risk_of_type_2_diabetes:_a_dose_response_analysis_of_prospective_studies_ L2 - https://doi.org/10.1007/s10654-013-9876-x DB - PRIME DP - Unbound Medicine ER -