Association between exposure to cadmium and risk of all-cause and cause-specific mortality in the general US adults: A prospective cohort study

医学 危险系数 比例危险模型 镉暴露 队列研究 全国健康与营养检查调查 死亡率 前瞻性队列研究 人口学 死亡风险 队列 死因 环境卫生 置信区间 内科学 疾病 人口 毒性 社会学 材料科学 冶金
作者
Zhi Li,Yun Fan,Chengzhe Tao,Wenkai Yan,Yuna Huang,Hong Qian,Qiaoqiao Xu,Tingya Wan,Yiyuan Chen,Yufeng Qin,Chuncheng Lu
出处
期刊:Chemosphere [Elsevier]
卷期号:307: 136060-136060 被引量:20
标识
DOI:10.1016/j.chemosphere.2022.136060
摘要

Cadmium has been suggested to accumulate in the body over a lifetime, posing a great threat to human health. So far, few studies have studied the association between cadmium exposure and long-term health outcomes in adults.To investigate the risk of mortality with blood cadmium level in adults (participants of NHANES, 1999-2014).We evaluated the associations between cadmium and risk of mortality. Data on mortality and cadmium exposure were collected in NHANES database including 39,865 participants. Multivariate Cox regression models were established for calculating hazard ratios (HRs) and 95%CI between cadmium exposure and all-cause and specific-cause mortality outcomes.Totally, 39,865 individuals with 19,260 males (48.3%) and 20,605 females (51.7%) were included in the study. During a total of 341,017 person-years of follow-up 5,094 deaths were documented, including 1,067 cardiovascular disease (CVD) and 890 cancers. Compared with the lowest quantile of cadmium exposure level group, the adjusted HRs in the highest quantile cadmium exposure level group were 1.73 (95%CI: 1.52-1.97) for all-cause mortality, 1.72 (95%CI: 1.28-2.30) for CVD mortality and 1.87 (95%CI: 1.49-2.36) for cancer mortality, respectively (P for trend: <0.001). Additionally, significant interactions with smoking status in the stratified analyses of all-cause mortality and cancer mortality, age in the stratified analyses of cancer mortality were found (P for interaction: 0.002, <0.001 and 0.012).In this nationwide representative sample of the population, we found that higher blood cadmium concentration was associated with increased risks of all-cause and specific-cause mortality. These data further evidence the link between mortality and cadmium concentration. It is of great importance for both policy makers and the public to minimize cadmium exposure, and to reduce long-term adverse health effects.
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