High manganese exposure decreased the risk of high triglycerides in workers: a cross-sectional study

Author:

Luo Xiaoyu,Liu Zhenfang,Ge Xiaoting,Huang Sifang,Zhou Yanting,Li Defu,Li Longman,Chen Xiang,Huang Lulu,Hou Qingzhi,Cheng Hong,Xiao Lili,Liu Chaoqun,Zou Yunfeng,Yang Xiaobo

Abstract

Abstract Background Manganese (Mn) participates in lipid metabolism. However, the associations between Mn exposure and dyslipidaemia is unclear. Methods This was a cross-sectional study. Data were collected from the 2017 the Mn-exposed workers healthy cohort (MEWHC). Finally, 803 occupationally Mn-exposed workers included in the study. The workers were divided into two groups. The grouping of this study was based on Mn-Time Weighted Averages (Mn-TWA). The high-exposure group included participants with Mn-TWA greater than 0.15 mg/m3. The low-exposure group included participants with Mn-TWA less than or equal to 0.15 mg/m3. Mn-TWA levels and dyslipidaemia were assessed. Results After adjustment for seniority, sex, cigarette consumption, alcohol consumption, high-fat diet frequency, medicine intake in the past two weeks, egg intake frequency, drinking tea, WHR, and hypertension, Mn-TWA levels was negatively correlated with high triglycerides (TG) risk in workers overall (OR = 0.51; 95% CI: 0.36, 0.73; p <  0.01). The results of males and females were consistent (OR = 0.53; 95% CI: 0.34, 0.81; p <  0.01) and (OR = 0.47; 95% CI: 0.24, 0.94; p <  0.01), respectively. By performing interactions analyses of workers overall, we observed no significant interactions among confounders. Mn-TWA levels and pack-years on high TG risk (relative excess risk for the interactions (RERI = 2.29, 95% CI: − 2.07, 6.66), (RERI) = 2.98, 95% CI: − 2.30, 8.26). Similarly, smoking status, drinking status, high-fat diet frequency, and Waist-to-Hip Ratio (WHR) showed non-significant interactions with Mn-TWA levels on high TG risk. Conclusions This research indicates that high Mn exposure was negatively related to high TG risk in workers.

Funder

National Natural Science Foundation of China

Innovative Research Group Project of the National Natural Science Foundation of China

Publisher

Springer Science and Business Media LLC

Subject

Public Health, Environmental and Occupational Health

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