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Sex-specific associations of single metal and metal mixture with handgrip strength: a cross-sectional study among Chinese adults

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Abstract

Metallic elements are ubiquitous in the natural environment and always collaborate to affect human health. The relationship of handgrip strength, a marker of functional ability or disability, with metal co-exposure remains vague. In this study, we aimed to investigate the effect of metal co-exposure on sex-specific handgrip strength. A total of 3594 participants (2296 men and 1298 women) aged 21 to 79 years recruited from Tongji Hospital were included in the present study. Urinary concentrations of 21 metals were measured by inductively coupled plasma mass spectrometer (ICP-MS). We used linear regression, restricted cubic spline (RCS) model, and weighted quantile sum (WQS) regression to evaluate the association of single metal as well as metal mixture with handgrip strength. After adjusting for important confounding factors, the results of linear regression showed that vanadium (V), zinc (Zn), arsenic (As), rubidium (Rb), cadmium (Cd), thallium (Tl), and uranium (U) were adversely associated with handgrip strength in men. The results of RCS showed a non-linear association between selenium (Se), silver (Ag), and nickel (Ni) with handgrip strength in women. The results of WQS regression revealed that metal co-exposure was inversely related to handgrip strength for men (β = -0.65, 95% CI: -0.98, -0.32). Cd was the critical metal in men (weighted 0.33). In conclusion, co-exposure to a higher level of metals is associated with lower handgrip strength, especially among men, and Cd may contribute most to the conjunct risk.

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The data are available from the corresponding author on reasonable request.

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Acknowledgements

We thank all the study participants and the staffs of the Tongji Hospital.

Funding

This study was supported by the National Natural Science Foundation of China (82073660, 82003479) and China Postdoctoral Science Foundation (2019M662646, 2020T130220).

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Authors and Affiliations

Authors

Contributions

Xiya Qin: formal analysis, writing- original draft, writing- review & editing. Gaojie Fan: data curation, writing- review & editing. Qing Liu: investigation, data curation. Mingyang Wu: conceptualization, data curation. Jianing Bi: investigation, data curation. Qing Fang: investigation, data curation. Zhengce Wan: resource. Yongman Lv: resource. Lulu Song: methodology, funding acquisition, supervision. Youjie Wang: funding acquisition, project administration, supervision, writing- review & editing.

Corresponding author

Correspondence to Youjie Wang.

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Competing interests

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.

Ethics approval

The study protocol was approved by the Ethics Review Board of Tongji Medical College, Huazhong University of Science and Technology.

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Informed consent was obtained from all individual participants included in the study.

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Not applicable.

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Responsible Editor: Lotfi Aleya

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Qin, X., Song, L., Fan, G. et al. Sex-specific associations of single metal and metal mixture with handgrip strength: a cross-sectional study among Chinese adults. Environ Sci Pollut Res 30, 66585–66597 (2023). https://doi.org/10.1007/s11356-023-26926-1

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  • DOI: https://doi.org/10.1007/s11356-023-26926-1

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