Abstract
BackgroundAlthough coal miners are susceptible to dyslipidaemia owing to their highly risky and stressful working environment as well as unhealthy lifestyle, very few studies have focused on this issue thus far. Therefore, this study investigated the current epidemiological characteristics of dyslipidaemia among Chinese coal miners.MethodsDemographic, anthropometric, and biochemical data were gathered from 4341 coal miners in China. Dyslipidaemia was diagnosed based on the serum lipid levels. Univariate and multivariate logistic regression analyses were used to assess the related risk factors for dyslipidaemia.ResultsThe average concentrations of total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) were 5.01 ± 0.93 mmol/L, 1.90 ± 1.72 mmol/L, 1.21 ± 0.35 mmol/L, and 3.15 ± 0.80 mmol/L, respectively. Additionally, 38.08% of participants had a high TC level, 25.84% had a low HDL-C level, 35.08% had a high LDL-C level, and 40.46% had a high TG level. The overall prevalence of dyslipidaemia was 68.28% (95% CI: 66.90–69.66%). Factors associated with dyslipidaemia were age, sex, marital status, monthly family income, type of work, length of service, smoking status, smoking index, drinking status, alcohol consumption per day, elevated fasting glucose, hypertension, obesity and abdominal obesity.ConclusionsOur study’s results indicated a very high prevalence of dyslipidaemia among Chinese coal miners and identified various risk factors for dyslipidaemia.
Highlights
Coal miners are susceptible to dyslipidaemia owing to their highly risky and stressful working environment as well as unhealthy lifestyle, very few studies have focused on this issue far
The dyslipidaemia group was older; had a higher fasting blood glucose (FBG), systolic blood pressure (SBP), diastolic blood pressure (DBP), body mass index (BMI), waist circumferences, waist-hip ratio (WHR), total cholesterol (TC) level, TG level, and low-density lipoprotein cholesterol (LDL-C) level; and had a lower high-density lipoprotein cholesterol (HDL-C) level compared to the non-dyslipidaemia group
Multivariate analysis in this study showed that a married status was an independent risk factor for a high TG level; female sex was inversely related with the prevalence of the low HDL-C and high TG levels, and a high monthly income was inversely associated with the prevalence of a high TC and low HDL-C level
Summary
Coal miners are susceptible to dyslipidaemia owing to their highly risky and stressful working environment as well as unhealthy lifestyle, very few studies have focused on this issue far. Cardiovascular disease (CVD) accounts for more than half of all non-communicable diseases and has become the leading cause of death worldwide [1]. When the excess mortality due to respiratory diseases and accidents, which are recognized as hazards related to coal mining, is eliminated, mortality rates for coal miners remain high from 1.4 to 1.7 times the death rates for all workingmen. Excess mortality from other conditions, digestive disorders, certain cancers, and cardiovascular diseases may represent previously unrecognized risks related to coal mining [6]. As non-communicable diseases (NCDs) constitute an increasing portion of the global burden of disease, mining industry employees may be exposed to various factors potentially elevating
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