Volume 40, Issue 8 e15080
Research: Epidemiology

Association between serum calcium level and type 2 diabetes: An NHANES analysis and Mendelian randomization study

Zhiyu Zhai

Zhiyu Zhai

Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China

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Yun Deng

Yun Deng

Community Health Service Center of Xiagang Street, Guangzhou, China

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Yunbiao He

Yunbiao He

Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China

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Li Chen

Li Chen

Department of Medicine, Medical College of Georgia, Georgia Prevention Institute, Augusta University, Augusta, Georgia, USA

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Xia Chen

Xia Chen

Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China

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Lei Zuo

Lei Zuo

Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China

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Mingliang Liu

Mingliang Liu

Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China

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Minzhi Mao

Minzhi Mao

Community Health Service Center of Xiagang Street, Guangzhou, China

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Sha Li

Sha Li

Community Health Service Center of Xiagang Street, Guangzhou, China

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Haiping Hu

Haiping Hu

Community Health Service Center of Xiagang Street, Guangzhou, China

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Haiyan Chen

Haiyan Chen

Department of Parasitic Disease and Endemic Disease Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, China

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Yuan Wei

Corresponding Author

Yuan Wei

Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Guangzhou Sport University, Guangzhou, China

Correspondence

Yuan Wei, Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Guangzhou Sport University No.1268, Guangzhou Avenue Middle, Guangzhou, Guangdong 510500, China.

Email: [email protected]

Qin Zhou, Department of Non-communicable Chronic Diseases Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, China. No. 1 Qide Road, Guangzhou, Guangdong 510440, China.

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Guang Hao, Department of Public Health and Preventive Medicine, School of Medicine, Jinan University 601 West Huangpu Road, Guangzhou, Guangdong 510632, China.

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Shuang Peng, Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Scientific Research Center, Guangzhou Sport University; School of Sport and Health Sciences, Guangzhou Sport University No.1268, Guangzhou Avenue Middle, Guangzhou, Guangdong 510500, China.

Email: [email protected]

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Qin Zhou

Corresponding Author

Qin Zhou

Guangzhou Center for Disease Control and Prevention, Guangzhou, China

Correspondence

Yuan Wei, Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Guangzhou Sport University No.1268, Guangzhou Avenue Middle, Guangzhou, Guangdong 510500, China.

Email: [email protected]

Qin Zhou, Department of Non-communicable Chronic Diseases Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, China. No. 1 Qide Road, Guangzhou, Guangdong 510440, China.

Email: [email protected]

Guang Hao, Department of Public Health and Preventive Medicine, School of Medicine, Jinan University 601 West Huangpu Road, Guangzhou, Guangdong 510632, China.

Email: [email protected]

Shuang Peng, Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Scientific Research Center, Guangzhou Sport University; School of Sport and Health Sciences, Guangzhou Sport University No.1268, Guangzhou Avenue Middle, Guangzhou, Guangdong 510500, China.

Email: [email protected]

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Guang Hao

Corresponding Author

Guang Hao

Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China

Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, China

Correspondence

Yuan Wei, Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Guangzhou Sport University No.1268, Guangzhou Avenue Middle, Guangzhou, Guangdong 510500, China.

Email: [email protected]

Qin Zhou, Department of Non-communicable Chronic Diseases Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, China. No. 1 Qide Road, Guangzhou, Guangdong 510440, China.

Email: [email protected]

Guang Hao, Department of Public Health and Preventive Medicine, School of Medicine, Jinan University 601 West Huangpu Road, Guangzhou, Guangdong 510632, China.

Email: [email protected]

Shuang Peng, Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Scientific Research Center, Guangzhou Sport University; School of Sport and Health Sciences, Guangzhou Sport University No.1268, Guangzhou Avenue Middle, Guangzhou, Guangdong 510500, China.

Email: [email protected]

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Shuang Peng

Corresponding Author

Shuang Peng

School of Sport and Health Sciences, Guangzhou Sport University, Guangzhou, China

Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Scientific Research Center, Guangzhou Sport University, Guangzhou, China

Correspondence

Yuan Wei, Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Guangzhou Sport University No.1268, Guangzhou Avenue Middle, Guangzhou, Guangdong 510500, China.

Email: [email protected]

Qin Zhou, Department of Non-communicable Chronic Diseases Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, China. No. 1 Qide Road, Guangzhou, Guangdong 510440, China.

Email: [email protected]

Guang Hao, Department of Public Health and Preventive Medicine, School of Medicine, Jinan University 601 West Huangpu Road, Guangzhou, Guangdong 510632, China.

Email: [email protected]

Shuang Peng, Key Laboratory of Sports Technique, Tactics and Physical Function of General Administration of Sport of China, Scientific Research Center, Guangzhou Sport University; School of Sport and Health Sciences, Guangzhou Sport University No.1268, Guangzhou Avenue Middle, Guangzhou, Guangdong 510500, China.

Email: [email protected]

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First published: 08 March 2023

Abstract

Aims

This study investigated the association between serum calcium levels and the prevalence of T2D using a cross-sectional study and Mendelian randomization analysis.

Methods

Cross-sectional data were obtained from the National Health and Nutrition Examination Survey (NHANES) from 1999 to 2018. Serum calcium levels were divided into three groups (low, medium and high groups) according to the tertiles. Logistic regression was used to estimate the association between serum calcium levels and T2D prevalence. Instrumental variables for serum calcium levels were obtained from the UK Biobank and a two-sample MR analysis was performed to examine the causal relationship between genetically predicted serum calcium levels and the risk of T2D.

Results

A total of 39,645 participants were available for cross-sectional analysis. After adjusting for covariates, participants in the high serum calcium group had significantly higher odds of T2D (OR = 1.18, 95% CI = 1.07, 1.30, p = 0.001) than those in the moderate group. Restricted cubic spline plots showed a J-shaped curve relationship between serum calcium level and prevalence of T2D. Consistently, Mendelian randomization analysis showed that higher genetically predicted serum calcium levels were causally associated with a higher risk of T2D (OR = 1.16, 95% CI: 1.01, 1.33, p = 0.031).

Conclusions

The results of this study suggest that higher serum calcium levels are causally associated with a higher risk of T2D. Further studies are needed to clarify whether intervening in high serum calcium could reduce the risk of T2D.

CONFLICT OF INTEREST STATEMENT

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are openly available in nhanes at https://www.cdc.gov/nchs/nhanes/index.htm.

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