Abstract
Cadmium (Cd) is a toxic heavy metal linked to an increased risk of cardiovascular disease (CVD). But the relationship between urinary Cd (U-Cd) and electrocardiographic subclinical myocardial injury (SC-MI) in older people is unclear. This study evaluated the connection between U-Cd and SC-MI in people who did not have CVD. The study involved 4269 participants from the National Health and Nutrition Examination Survey III(NHANES III) aged ≥ 50 years and had no history of CVD. The relationship between U-Cd and cardiac infarction/injury score (CIIS) was assessed by multivariable linear regression. Whether U-Cd and SC-MI were correlated was determined by multivariate logistic regression, restricted cubic spline, and subgroup analysis. There was a significant association between U-Cd and CIIS (β, 1.04, 95% confidence interval (CI): 0.39–1.69; P = 0.003) in the highest quartile and fully adjusted model. After adjusting for relevant confounders, multivariable logistic regression showed that participants in the highest quartile of U-Cd had a greater chance of having SC-MI than those in the first ( OR (95% CI), 1.37(1.13,1.66), P for trend = 0.003), and this relationship was especially strong among hypertensive participants. And a positive linear correlation between U-Cd and the prevalence of SC-MI was shown by restricted cubic spline analysis. U-Cd may be a novel risk element for SC-MI because it is independently and linearly linked to CIIS and SC-MI.
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Data availability
The National Health and Nutrition Examination Survey (NHANES) is an open-access resource, and data are available at https://www.cdc.gov/nchs/nhanes.
Abbreviations
- Cd :
-
Cadmium
- CVD :
-
Cardiovascular disease
- ASCVD :
-
Atherosclerotic cardiovascular disease
- AMI :
-
Acute myocardial infarction
- IHD :
-
Ischemic heart disease
- U-Cd :
-
Urinary cadmium
- SC-MI :
-
Subclinical myocardial injury
- CIIS :
-
Cardiac infarction/injury score
- CDC:
-
Centers for Disease Control and Prevention
- PIR :
-
Poverty income ratio
- SBP :
-
Systolic blood pressure
- DBP :
-
Diastolic blood pressure
- PR :
-
Pulse rate
- BMI :
-
Body mass index
- TC :
-
Total cholesterol
- HDL-C :
-
High-density lipoprotein cholesterol
- TG :
-
Triglycerides
- CRP :
-
C-reactive protein
- APOB :
-
Apolipoprotein B
- FIB :
-
Fibrinogen
- C-p :
-
C-peptide
- BUN :
-
Blood urea nitrogen
- UA :
-
Uric acid
- ROS :
-
Reactive oxygen species
- NADPH :
-
Nicotinamide adenine dinucleotide phosphate oxidase
- SE :
-
Standard error
- CI :
-
Confidence interval
- NHANES III :
-
National Health and Nutrition Examination Survey III
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Yu-Jie Wu and Si-Bo Wang: concept development, methodology, software, writing-original draft, visualization. Jia-Teng Sun, Ling-Feng Gu, Ze-Mu Wang, Bo Deng, and Hao Wang: writing-review and editing, data curation, validation. Lian-Sheng Wang: concept development, project management, editing, reviewing, and writing supervision.
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Wu, YJ., Wang, SB., Sun, JT. et al. Association between urinary cadmium level and subclinical myocardial injury in the general population without cardiovascular disease aged ≥ 50 years. Environ Sci Pollut Res 30, 77551–77559 (2023). https://doi.org/10.1007/s11356-023-27923-0
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DOI: https://doi.org/10.1007/s11356-023-27923-0