PMID- 34136169 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240402 IS - 2048-7177 (Print) IS - 2048-7177 (Electronic) IS - 2048-7177 (Linking) VI - 9 IP - 6 DP - 2021 Jun TI - Association of serum selenium with anemia-related indicators and risk of anemia. PG - 3039-3047 LID - 10.1002/fsn3.2261 [doi] AB - Few studies have examined the association of serum selenium with anemia-related indicators and risk of anemia. We conducted a cross-sectional analysis of 2,902 adults in 2003-2004 National Health and Nutrition Examination Survey database. Multivariable linear and logistic regression models were used to examine the association of serum selenium with anemia-related indicators and risk of anemia. The nonlinear relationship was analyzed using a generalized additive model with the smoothing plot. A total of 1,472 males and 1,430 females with a mean age of 61.94 +/- 13.73 years were included. Compared with the lowest quintile, the highest quintile of serum selenium was associated with increased level of serum iron (beta = 12.44, 95% confidence interval [CI]: 7.14, 17.75, p < .001), mean corpuscular hemoglobin concentration (MCHC) (beta = 0.14, 95%CI: 0.02, 0.26, p = .020), and hemoglobin (beta = 0.40, 95%CI: 0.19, 0.61, p < .001), and decreased risk of anemia (odds ratio [OR] = 0.47, 95%CI: 0.28, 0.77, p = .002). Furthermore, smoothed plots suggested the nonlinear relationships between serum selenium and MCHC, hemoglobin level, and risk of anemia. Interestingly, on the left of inflection point, serum selenium was associated with decreased risk of anemia (OR = 0.972, 95%CI: 0.960, 0.985, p < .001), and then, the risk of anemia increased with increasing serum selenium concentration (OR = 1.011, 95%CI: 1.002, 1.021, p = .023). Future large-scale, polycentric prospective studies should be conducted to verify our results. CI - (c) 2021 The Authors. Food Science & Nutrition published by Wiley Periodicals LLC. FAU - Zhou, Qing AU - Zhou Q AD - Central Laboratory People's Hospital of Baoan District The Second Affiliated Hospital of Shenzhen University Shenzhen China. FAU - Zhang, Baozhu AU - Zhang B AD - Department of Oncology People's Hospital of Baoan District The Second Affiliated Hospital of Shenzhen University Shenzhen China. FAU - Chen, Xi AU - Chen X AD - Central Laboratory People's Hospital of Baoan District The Second Affiliated Hospital of Shenzhen University Shenzhen China. FAU - Chen, Qiuyan AU - Chen Q AD - Science and Education Department Shenzhen Baoan Shiyan People's Hospital Shenzhen China. FAU - Hao, Lu AU - Hao L AUID- ORCID: 0000-0002-4305-7766 AD - Science and Education Department Shenzhen Baoan Shiyan People's Hospital Shenzhen China. LA - eng SI - Dryad/10.5061/dryad.d5h62 PT - Journal Article DEP - 20210327 PL - United States TA - Food Sci Nutr JT - Food science & nutrition JID - 101605473 PMC - PMC8194763 OTO - NOTNLM OT - Selenium OT - anemia OT - cross-sectional study OT - hemoglobin concentrations COIS- The authors declare that they do not have any conflict of interest Data availability statement. EDAT- 2021/06/18 06:00 MHDA- 2021/06/18 06:01 PMCR- 2021/03/27 CRDT- 2021/06/17 06:44 PHST- 2021/01/23 00:00 [received] PHST- 2021/03/09 00:00 [revised] PHST- 2021/03/14 00:00 [accepted] PHST- 2021/06/17 06:44 [entrez] PHST- 2021/06/18 06:00 [pubmed] PHST- 2021/06/18 06:01 [medline] PHST- 2021/03/27 00:00 [pmc-release] AID - FSN32261 [pii] AID - 10.1002/fsn3.2261 [doi] PST - epublish SO - Food Sci Nutr. 2021 Mar 27;9(6):3039-3047. doi: 10.1002/fsn3.2261. eCollection 2021 Jun.