Evidence map›Paper›PMID 37915007›Full record

ArticleBMC public health2023

Association of serum copper (Cu) with cardiovascular mortality and all-cause mortality in a general population: a prospective cohort study.

Xiaozhong Li, Jitao Ling, Qingwen Hu, Changchang Fang, Kaibo Mei, Yifan Wu, Jingyi Huang, Qin Ling, Yixuan Chen, Peng Yu and 2 more

Abstract read
In one paragraph

Article in BMC public health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Article
  2. Article
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  6. Article
  7. Article
  8. The evaluation of serum magnesium and calcium/magnesium ratio in patients with breast cancer receiving adjuvant chemotherapy.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology · 2025
    Article
  9. Review
  10. Copper's dual role: unravelling the link between copper homeostasis, cuproptosis, and cardiovascular diseases.Hypertension research : official journal of the Japanese Society of Hypertension · 2024
    Review
  11. Review
  12. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Xiaozhong Li *Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
Jitao Ling *Department of Endocrinology Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China.
Qingwen HuDepartment of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
Changchang FangDepartment of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
Kaibo MeiDepartment of Anesthesiology, The People's Hospital of Shanggrao, Shanggrao, Jiangxi, China.
Yifan WuDepartment of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
Jingyi HuangDepartment of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
Qin LingDepartment of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
Yixuan ChenDepartment of Endocrinology Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China.
Peng YuDepartment of Endocrinology Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China.
Xiao LiuDepartment of Cardiology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China. liux587@mail.sysu.edu.cn.
Juxiang LiDepartment of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China. ljx912@126.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCopper (Cu) homeostasis and Cu-induced cell death are gaining recognition as crucial processes in the pathogenesis of cardiovascular disease (CVD). Circulating Cu associated with CVD and mortality is yet to be fully elucidated.

objectiveThis national prospective cohort study is to estimate relationship between serum Cu and the risk of CVD and all-cause mortality.

methodsThis study included participants from the National Health and Nutrition Examination Survey 2011-2016. Weighted Cox proportional hazards regression analysis and exposure-response curves were applied.

resultsThis included 5,412 adults, representing 76,479,702 individuals. During a mean of 5.85 years of follow-up (31,653 person-years), 96 CVD and 356 all-cause mortality events occurred. Age and sex-adjusted survival curves showed that individuals with higher levels of serum Cu experienced increased CVD and all-cause death rates (tertiles, p < 0.05). Compared with the participant in tertile 1 of serum Cu (< 16.31 mol/L), those in tertile 3 (≥ 19.84 mol/L) were significantly associated with CVD mortality (HR: 7.06, 95%CI: 1.85,26.96), and all-cause mortality (HR: 2.84, 95% CI: 1.66,4.87). The dose-response curve indicated a linear relationship between serum Cu and CVD mortality (p -nonlinear = 0.48) and all-cause (p -nonlinear = 0.62). A meta-analysis included additional three prospective cohorts with 13,189 patients confirmed the association between higher serum Cu and CVD (HR: 2.08, 95% CI: 1.63,2.65) and all-cause mortality (HR: 1.89, 95%CI: 1.58,2.25).

conclusionThe present study suggests excessive serum Cu concentrations are associated with the risk of CVD and all-cause mortality in American adults. Our findings and the causal relationships require further investigation.

Indexed as

Cardiovascular DiseasesCopperAdultCausalityHumansNutrition SurveysProspective StudiesRisk FactorsCopperCardiovascular DiseasesCopperNHANES

Identifiers

PMID37915007
PMCPMC10621106

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.