Sex-specific associations of blood lead and cadmium levels with sarcopenia in US adults

Abstract Sex-specific associations of blood lead and blood cadmium levels with sarcopenia in US adults remains unclear. This study aimed to investigate these relationships using data from the National Health and Nutrition Examination Survey (NHANES) 2011–2018. A total of 7,000 adults (3,456 men and...

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Main Authors: Yan Chen, Ting Dai, Jing Gao, Xiaodong Feng
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-13823-5
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author Yan Chen
Ting Dai
Jing Gao
Xiaodong Feng
author_facet Yan Chen
Ting Dai
Jing Gao
Xiaodong Feng
author_sort Yan Chen
collection DOAJ
description Abstract Sex-specific associations of blood lead and blood cadmium levels with sarcopenia in US adults remains unclear. This study aimed to investigate these relationships using data from the National Health and Nutrition Examination Survey (NHANES) 2011–2018. A total of 7,000 adults (3,456 men and 3,544 women) with complete data of blood Pb, Cd, and covariates, and complete Dual-Energy X-ray Absorptiometry (DXA) data for sarcopenia assessment were included, and sarcopenia was diagnosed based on the sarcopenia index (SI). Survey-weighted logistic regression models adjusted for sociodemographic, lifestyle, and health-related covariates, including age, sex, race, educational level, marital status, poverty-to-income ratio (PIR), drinking status, waist circumference, and BMI, were used to estimate odds ratios (ORs). Blood Pb level showed a positive association with sarcopenia risk in both sexes, especially in males (Q4 vs. Q1: Weighted OR = 2.53, 95% CI: 1.17–5.47; P = 0.02), while blood Cd exhibited a positive association with sarcopenia risk only in females (Q4 vs. Q1: Weighted OR = 5.08, 95% CI: 2.46–10.46; P < 0.01). Sex-stratified RCS analysis suggested nonlinear associations of Pb (P–nonlinear < 0.01) and Cd (P–nonlinear < 0.01) with sarcopenia risk, with males demonstrating steeper risk increments at higher Pb levels and females exhibiting steeper risk increments at higher Cd levels. These findings highlight sex-specific disparities in metal toxicity, suggesting that Pb and Cd exposure may differentially contribute to sarcopenia risk. Potential mechanisms could include via hormonal and body composition pathways.
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spelling doaj-art-7fda4deb92fc4634b96e7e636a8f626a2025-08-20T03:05:25ZengNature PortfolioScientific Reports2045-23222025-08-011511910.1038/s41598-025-13823-5Sex-specific associations of blood lead and cadmium levels with sarcopenia in US adultsYan Chen0Ting Dai1Jing Gao2Xiaodong Feng3Rehabilitation Center, The First Affiliated Hospital of Henan University of Traditional Chinese MedicineRehabilitation Center, The First Affiliated Hospital of Henan University of Traditional Chinese MedicineRehabilitation Center, The First Affiliated Hospital of Henan University of Traditional Chinese MedicineRehabilitation Center, The First Affiliated Hospital of Henan University of Traditional Chinese MedicineAbstract Sex-specific associations of blood lead and blood cadmium levels with sarcopenia in US adults remains unclear. This study aimed to investigate these relationships using data from the National Health and Nutrition Examination Survey (NHANES) 2011–2018. A total of 7,000 adults (3,456 men and 3,544 women) with complete data of blood Pb, Cd, and covariates, and complete Dual-Energy X-ray Absorptiometry (DXA) data for sarcopenia assessment were included, and sarcopenia was diagnosed based on the sarcopenia index (SI). Survey-weighted logistic regression models adjusted for sociodemographic, lifestyle, and health-related covariates, including age, sex, race, educational level, marital status, poverty-to-income ratio (PIR), drinking status, waist circumference, and BMI, were used to estimate odds ratios (ORs). Blood Pb level showed a positive association with sarcopenia risk in both sexes, especially in males (Q4 vs. Q1: Weighted OR = 2.53, 95% CI: 1.17–5.47; P = 0.02), while blood Cd exhibited a positive association with sarcopenia risk only in females (Q4 vs. Q1: Weighted OR = 5.08, 95% CI: 2.46–10.46; P < 0.01). Sex-stratified RCS analysis suggested nonlinear associations of Pb (P–nonlinear < 0.01) and Cd (P–nonlinear < 0.01) with sarcopenia risk, with males demonstrating steeper risk increments at higher Pb levels and females exhibiting steeper risk increments at higher Cd levels. These findings highlight sex-specific disparities in metal toxicity, suggesting that Pb and Cd exposure may differentially contribute to sarcopenia risk. Potential mechanisms could include via hormonal and body composition pathways.https://doi.org/10.1038/s41598-025-13823-5Blood leadBlood cadmiumSarcopeniaNHANES
spellingShingle Yan Chen
Ting Dai
Jing Gao
Xiaodong Feng
Sex-specific associations of blood lead and cadmium levels with sarcopenia in US adults
Scientific Reports
Blood lead
Blood cadmium
Sarcopenia
NHANES
title Sex-specific associations of blood lead and cadmium levels with sarcopenia in US adults
title_full Sex-specific associations of blood lead and cadmium levels with sarcopenia in US adults
title_fullStr Sex-specific associations of blood lead and cadmium levels with sarcopenia in US adults
title_full_unstemmed Sex-specific associations of blood lead and cadmium levels with sarcopenia in US adults
title_short Sex-specific associations of blood lead and cadmium levels with sarcopenia in US adults
title_sort sex specific associations of blood lead and cadmium levels with sarcopenia in us adults
topic Blood lead
Blood cadmium
Sarcopenia
NHANES
url https://doi.org/10.1038/s41598-025-13823-5
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AT tingdai sexspecificassociationsofbloodleadandcadmiumlevelswithsarcopeniainusadults
AT jinggao sexspecificassociationsofbloodleadandcadmiumlevelswithsarcopeniainusadults
AT xiaodongfeng sexspecificassociationsofbloodleadandcadmiumlevelswithsarcopeniainusadults