Dose–Response Relationship Between Serum 25(OH)D and the Risk of Abnormal Glycemic Status in Chinese Older Adults

Background/Objectives: The relationship between serum 25-hydroxyvitaminD (25(OH)D) concentration and the risk of abnormal glycemic status remains contradictory. Whether sufficient 25(OH)D plays a role in reducing the risk of diabetes and prediabetes is debatable. Its dose–response relationship and t...

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Main Authors: Yuting Li, Jing Chen, Qingqing Man, Rui Wang, Deqian Mao, Min Li, Jian Zhang, Yichun Hu, Lichen Yang
Format: Article
Language:English
Published: MDPI AG 2024-10-01
Series:Metabolites
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Online Access:https://www.mdpi.com/2218-1989/14/11/579
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author Yuting Li
Jing Chen
Qingqing Man
Rui Wang
Deqian Mao
Min Li
Jian Zhang
Yichun Hu
Lichen Yang
author_facet Yuting Li
Jing Chen
Qingqing Man
Rui Wang
Deqian Mao
Min Li
Jian Zhang
Yichun Hu
Lichen Yang
author_sort Yuting Li
collection DOAJ
description Background/Objectives: The relationship between serum 25-hydroxyvitaminD (25(OH)D) concentration and the risk of abnormal glycemic status remains contradictory. Whether sufficient 25(OH)D plays a role in reducing the risk of diabetes and prediabetes is debatable. Its dose–response relationship and the optimal 25(OH)D threshold are not clear. This study investigated the relationship between serum 25(OH)D and the risk of abnormal glycemic status to explore the optimal cut-off value. Methods: This study included 5856 Chinese older adults aged 60 years and above from the China Adult Chronic Disease and Nutrition Survey (CACDNS 2015–2017). Serum 25(OH)D concentration was measured via an enzyme-linked immuosorbent assay. Abnormal glycemic status in the present study includes diabetes and prediabetes. Statistical methods such as a locally weighted regression and smoothing scatterplot (LOESS), restricted cubic spline regression (RCS) and binary and trend logistic regression were used to explore the dose–response relationship and the optimal 25(OH)D threshold. Results: The concentration of 25(OH)D was nonlinearly related to the levels of FPG and HbA<sub>1C</sub> in the LOESS curves. The nonlinear relation between 25(OH)D and the risk of diabetes and prediabetes was illustrated in the RCS curves and the optimal 25(OH)D threshold beneficial for diabetes was preliminarily explored to be 29.06 ng/mL, but no threshold for prediabetes was found. The dose–response results showed that for each 1 ng/mL increase in 25(OH)D, the risk of the fasting glucose type of diabetes reduced by 2.1%, the risk of the abnormal HbA<sub>1C</sub> type of diabetes reduced by 2.2% and the risk of the mixed type of diabetes reduced by 1.7%, whereas a dose–response relationship was not found for prediabetes. Conclusions: Higher serum 25(OH)D concentrations in Chinese older adults were associated with a reduced risk of glycemic abnormalities. The optimal 25(OH)D cut-off value was sufficiently beneficial if the diseased diabetes risk was 29.06 ng/mL, but no threshold was found for prediabetes.
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spelling doaj-art-7702e3634d1b4a3ca2401677e0146fe12025-08-20T02:04:54ZengMDPI AGMetabolites2218-19892024-10-01141157910.3390/metabo14110579Dose–Response Relationship Between Serum 25(OH)D and the Risk of Abnormal Glycemic Status in Chinese Older AdultsYuting Li0Jing Chen1Qingqing Man2Rui Wang3Deqian Mao4Min Li5Jian Zhang6Yichun Hu7Lichen Yang8Key Laboratory of Public Nutrition and Health, National Health Commission of the People’s Republic of China, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, ChinaKey Laboratory of Public Nutrition and Health, National Health Commission of the People’s Republic of China, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, ChinaKey Laboratory of Public Nutrition and Health, National Health Commission of the People’s Republic of China, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, ChinaKey Laboratory of Public Nutrition and Health, National Health Commission of the People’s Republic of China, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, ChinaKey Laboratory of Public Nutrition and Health, National Health Commission of the People’s Republic of China, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, ChinaKey Laboratory of Public Nutrition and Health, National Health Commission of the People’s Republic of China, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, ChinaKey Laboratory of Public Nutrition and Health, National Health Commission of the People’s Republic of China, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, ChinaKey Laboratory of Public Nutrition and Health, National Health Commission of the People’s Republic of China, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, ChinaKey Laboratory of Public Nutrition and Health, National Health Commission of the People’s Republic of China, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, ChinaBackground/Objectives: The relationship between serum 25-hydroxyvitaminD (25(OH)D) concentration and the risk of abnormal glycemic status remains contradictory. Whether sufficient 25(OH)D plays a role in reducing the risk of diabetes and prediabetes is debatable. Its dose–response relationship and the optimal 25(OH)D threshold are not clear. This study investigated the relationship between serum 25(OH)D and the risk of abnormal glycemic status to explore the optimal cut-off value. Methods: This study included 5856 Chinese older adults aged 60 years and above from the China Adult Chronic Disease and Nutrition Survey (CACDNS 2015–2017). Serum 25(OH)D concentration was measured via an enzyme-linked immuosorbent assay. Abnormal glycemic status in the present study includes diabetes and prediabetes. Statistical methods such as a locally weighted regression and smoothing scatterplot (LOESS), restricted cubic spline regression (RCS) and binary and trend logistic regression were used to explore the dose–response relationship and the optimal 25(OH)D threshold. Results: The concentration of 25(OH)D was nonlinearly related to the levels of FPG and HbA<sub>1C</sub> in the LOESS curves. The nonlinear relation between 25(OH)D and the risk of diabetes and prediabetes was illustrated in the RCS curves and the optimal 25(OH)D threshold beneficial for diabetes was preliminarily explored to be 29.06 ng/mL, but no threshold for prediabetes was found. The dose–response results showed that for each 1 ng/mL increase in 25(OH)D, the risk of the fasting glucose type of diabetes reduced by 2.1%, the risk of the abnormal HbA<sub>1C</sub> type of diabetes reduced by 2.2% and the risk of the mixed type of diabetes reduced by 1.7%, whereas a dose–response relationship was not found for prediabetes. Conclusions: Higher serum 25(OH)D concentrations in Chinese older adults were associated with a reduced risk of glycemic abnormalities. The optimal 25(OH)D cut-off value was sufficiently beneficial if the diseased diabetes risk was 29.06 ng/mL, but no threshold was found for prediabetes.https://www.mdpi.com/2218-1989/14/11/57925-hydroxyvitamin Dtype 2 diabetes mellitusprediabetesabnormal glycemic statusolder adultsrestricted cubic spline regression
spellingShingle Yuting Li
Jing Chen
Qingqing Man
Rui Wang
Deqian Mao
Min Li
Jian Zhang
Yichun Hu
Lichen Yang
Dose–Response Relationship Between Serum 25(OH)D and the Risk of Abnormal Glycemic Status in Chinese Older Adults
Metabolites
25-hydroxyvitamin D
type 2 diabetes mellitus
prediabetes
abnormal glycemic status
older adults
restricted cubic spline regression
title Dose–Response Relationship Between Serum 25(OH)D and the Risk of Abnormal Glycemic Status in Chinese Older Adults
title_full Dose–Response Relationship Between Serum 25(OH)D and the Risk of Abnormal Glycemic Status in Chinese Older Adults
title_fullStr Dose–Response Relationship Between Serum 25(OH)D and the Risk of Abnormal Glycemic Status in Chinese Older Adults
title_full_unstemmed Dose–Response Relationship Between Serum 25(OH)D and the Risk of Abnormal Glycemic Status in Chinese Older Adults
title_short Dose–Response Relationship Between Serum 25(OH)D and the Risk of Abnormal Glycemic Status in Chinese Older Adults
title_sort dose response relationship between serum 25 oh d and the risk of abnormal glycemic status in chinese older adults
topic 25-hydroxyvitamin D
type 2 diabetes mellitus
prediabetes
abnormal glycemic status
older adults
restricted cubic spline regression
url https://www.mdpi.com/2218-1989/14/11/579
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