PMID- 34052916 OWN - NLM STAT- MEDLINE DCOM- 20210915 LR - 20220531 IS - 1436-6215 (Electronic) IS - 1436-6207 (Linking) VI - 60 IP - 7 DP - 2021 Oct TI - Sodium status is associated with type 2 diabetes mellitus: a systematic review and meta-analysis of observational studies. PG - 3543-3565 LID - 10.1007/s00394-021-02595-z [doi] AB - PURPOSE: The relationship between sodium intake and the risk of developing type 2 diabetes mellitus (T2DM) is inconsistent. We, therefore, aimed to summarize the current evidence by conducting a systematic review and meta-analysis of observational studies. METHODS: We retrieved studies which compared any marker of sodium status between individuals with T2DM and those without diabetes published in any language by searching online databases from inception up to June 2019. Summary effects were derived using random-effects model. RESULTS: A total of 44 studies with 503,830 participants from 25 countries were included in this study. Sodium status was significantly different between individuals with and without T2DM (Hedges' g = 0.21; 95% CI 0.02, 0.40; P = 0.029). Individuals with T2DM had higher sodium intake compared to non-diabetic controls (WMD = 621.79 mg/day; 95% CI 321.53, 922.06; P < 0.001) and 24-h urinary excretion was associated with likelihood of developing T2DM (OR = 1.27, 95% CI 1.15, 1.41; P < 0.001). Furthermore, salivary, hair, and platelet sodium were higher in patients with T2DM compared to controls (P < 0.05). CONCLUSION: The findings of the current meta-analysis suggest that sodium levels are higher in patients with T2DM compared to non-diabetic controls; however, given that these studies are observational, it is not possible to infer causality. CI - (c) 2021. Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Kolahdouz-Mohammadi, Roya AU - Kolahdouz-Mohammadi R AD - Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. FAU - Soltani, Sepideh AU - Soltani S AD - Yazd Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. FAU - Clayton, Zachary Stephen AU - Clayton ZS AD - Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA. FAU - Salehi-Abargouei, Amin AU - Salehi-Abargouei A AUID- ORCID: 0000-0002-7580-6717 AD - Nutrition and Food Security Research Center, Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. abargouei@ssu.ac.ir. LA - eng PT - Journal Article PT - Meta-Analysis PT - Systematic Review DEP - 20210530 PL - Germany TA - Eur J Nutr JT - European journal of nutrition JID - 100888704 RN - 0 (Biomarkers) RN - 9NEZ333N27 (Sodium) SB - IM MH - Biomarkers MH - *Diabetes Mellitus, Type 2/epidemiology MH - Humans MH - Observational Studies as Topic MH - Risk Factors MH - *Sodium OTO - NOTNLM OT - Meta-analysis OT - Observational studies OT - Sodium OT - Systematic review OT - Type 2 diabetes mellitus EDAT- 2021/05/31 06:00 MHDA- 2021/09/16 06:00 CRDT- 2021/05/30 21:08 PHST- 2020/10/18 00:00 [received] PHST- 2021/05/21 00:00 [accepted] PHST- 2021/05/31 06:00 [pubmed] PHST- 2021/09/16 06:00 [medline] PHST- 2021/05/30 21:08 [entrez] AID - 10.1007/s00394-021-02595-z [pii] AID - 10.1007/s00394-021-02595-z [doi] PST - ppublish SO - Eur J Nutr. 2021 Oct;60(7):3543-3565. doi: 10.1007/s00394-021-02595-z. Epub 2021 May 30.