Associations between serum calcium, 25(OH)D level and bone mineral density in adolescents

Abstract Backgrounds It is important to improve our understanding of the roles of calcium and vitamin D in bone health for preventing osteoporosis. We aimed at exploring the associations between serum calcium, vitamin D level, and bone mineral density (BMD) in adolescents included in the National He...

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Main Authors: Kaiyu Pan, Rongliang Tu, Xiaocong Yao, Zhongxin Zhu
Format: Article
Language:English
Published: BMC 2021-03-01
Series:Advances in Rheumatology
Subjects:
Online Access:https://doi.org/10.1186/s42358-021-00174-8
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author Kaiyu Pan
Rongliang Tu
Xiaocong Yao
Zhongxin Zhu
author_facet Kaiyu Pan
Rongliang Tu
Xiaocong Yao
Zhongxin Zhu
author_sort Kaiyu Pan
collection DOAJ
description Abstract Backgrounds It is important to improve our understanding of the roles of calcium and vitamin D in bone health for preventing osteoporosis. We aimed at exploring the associations between serum calcium, vitamin D level, and bone mineral density (BMD) in adolescents included in the National Health and Nutrition Examination Survey (NHANES) 2001–2006. Methods Weighted multivariate linear regression models were used to estimate the associations of serum calcium, 25(OH)D level with total BMD. Smooth curve fitting was used to explore the potential non-linear relationship. Results A total of 5990 individuals aged between 12 and 19 years were included in this study. The fully-adjusted model showed serum calcium positively correlated with total BMD. However, an inverted U-shaped relationship was found when we performed the smooth curve fitting method, and the inflection point was calculated at 9.6 mg/dL using the two-piecewise linear regression model. In contrast, there was a positive correlation between serum 25(OH)D and total BMD after adjusting for potential confounders. Conclusions The present study revealed a positive correlation between serum 25(OH)D level and total BMD, and an inverted U-shaped relationship between serum calcium and total BMD.
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spelling doaj.art-46c8ab6e606a44078cf0a04405616f342022-12-21T20:00:48ZengBMCAdvances in Rheumatology2523-31062021-03-016111910.1186/s42358-021-00174-8Associations between serum calcium, 25(OH)D level and bone mineral density in adolescentsKaiyu Pan0Rongliang Tu1Xiaocong Yao2Zhongxin Zhu3Department of Paediatrics, Xiaoshan Affiliated Hospital of Wenzhou Medical UniversityDepartment of Paediatrics, Zhejiang Xiaoshan HospitalDepartment of Osteoporosis Care and Control, Xiaoshan Affiliated Hospital of Wenzhou Medical UniversityDepartment of Osteoporosis Care and Control, Xiaoshan Affiliated Hospital of Wenzhou Medical UniversityAbstract Backgrounds It is important to improve our understanding of the roles of calcium and vitamin D in bone health for preventing osteoporosis. We aimed at exploring the associations between serum calcium, vitamin D level, and bone mineral density (BMD) in adolescents included in the National Health and Nutrition Examination Survey (NHANES) 2001–2006. Methods Weighted multivariate linear regression models were used to estimate the associations of serum calcium, 25(OH)D level with total BMD. Smooth curve fitting was used to explore the potential non-linear relationship. Results A total of 5990 individuals aged between 12 and 19 years were included in this study. The fully-adjusted model showed serum calcium positively correlated with total BMD. However, an inverted U-shaped relationship was found when we performed the smooth curve fitting method, and the inflection point was calculated at 9.6 mg/dL using the two-piecewise linear regression model. In contrast, there was a positive correlation between serum 25(OH)D and total BMD after adjusting for potential confounders. Conclusions The present study revealed a positive correlation between serum 25(OH)D level and total BMD, and an inverted U-shaped relationship between serum calcium and total BMD.https://doi.org/10.1186/s42358-021-00174-8CalciumVitamin DBone healthAdolescentNHANES
spellingShingle Kaiyu Pan
Rongliang Tu
Xiaocong Yao
Zhongxin Zhu
Associations between serum calcium, 25(OH)D level and bone mineral density in adolescents
Advances in Rheumatology
Calcium
Vitamin D
Bone health
Adolescent
NHANES
title Associations between serum calcium, 25(OH)D level and bone mineral density in adolescents
title_full Associations between serum calcium, 25(OH)D level and bone mineral density in adolescents
title_fullStr Associations between serum calcium, 25(OH)D level and bone mineral density in adolescents
title_full_unstemmed Associations between serum calcium, 25(OH)D level and bone mineral density in adolescents
title_short Associations between serum calcium, 25(OH)D level and bone mineral density in adolescents
title_sort associations between serum calcium 25 oh d level and bone mineral density in adolescents
topic Calcium
Vitamin D
Bone health
Adolescent
NHANES
url https://doi.org/10.1186/s42358-021-00174-8
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