Cancer incidence in Czech black coal miners in association with coalworkers’ pneumoconiosis

Tomášková, Hana; Jirák, Zdeněk; Šplíchalová, Anna; Urban, Pavel

doi:10.2478/s13382-012-0015-9

Cited by 24 publications

(20 citation statements)

References 21 publications

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“…Stomach cancer was stated as a cause of death in 13 persons in the present study of miners with CWP. Our previous study that focused on cancer incidence did not find a statistically significant difference compared to the general population [22], which was the reason to exclude this diagnosis from the current analysis. Most authors found the risk of dying from lung cancer comparable to or only slightly increased from the population [6,7,13,15].…”

Section: Discussionmentioning

confidence: 99%

“…These miners did not become ill with CWP until the year 2013 and in the beginning of the follow-up (1992) they were alive. This cohort had already been analyzed in 2001 [22]. For these miners, recorded information included: the date of birth, mining profession, length of exposure in years, percent of the MPE, the year of ceasing work in mine, and smoking status.…”

Section: Methodsmentioning

confidence: 99%

“…In our previous study [22] which dealt with the analysis of cancer risk in miners in the period 1992–2001, the statistically significant risk of incidence of malignant lung neoplasms in the miners with CWP was confirmed, but not in miners without CWP and the initial form of CWP. The level of risk increased with the severity of CWP.…”

Section: Introductionmentioning

confidence: 98%

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Mortality in Miners with Coal-Workers’ Pneumoconiosis in the Czech Republic in the Period 1992–2013

Tomášková

Šplíchalová

Šlachtová

et al. 2017

IJERPH

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While working underground, miners are exposed to a number of risk factors that have a negative impact on their health and may be a cause of an increased mortality in miners. The aim of the study was to compare total and specific mortality in black coal miners with acknowledged coal-workers’ pneumoconiosis (CWP) and without CWP, and the mortality of the general male population in the Czech Republic in the period 1992–2013. The sample consisted of 3476 coal miners with CWP and 6687 ex-coal miners without CWP, who were removed after achieving the maximum permissible exposure (MPE). The mortality risk differences were analyzed with the use of the standardized mortality ratio (SMR) and 95% confidence interval. Significantly higher total mortality (SMR = 1.10; 95% CI: 1.02–1.17), and mortality from malignant neoplasm (SMR = 1.16; 95% CI: 1.03–1.30), lung cancers (SMR = 1.70; 95% CI: 1.41–2.04), and non-malignant respiratory diseases (SMR = 2.78; 95% CI: 2.32–3.31) were found in the sample of coal miners with CWP. In this sample, the severity of CWP was assessed, and the SMR increased with the severity of CWP. The total (SMR = 0.86; 95% CI: 0.82–0.91) and specific mortality of miners without CWP were not higher compared with the general population. In the case where the miners were removed from underground work after achieving the MPE (without CWP), their mortality was not higher than that of the general population, but the mortality of miners with CWP was higher compared to the general population. This mortality was affected by malignant and non-malignant respiratory diseases.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Mortality in Miners with Coal-Workers’ Pneumoconiosis in the Czech Republic in the Period 1992–2013

Tomášková

Šplíchalová

Šlachtová

et al. 2017

IJERPH

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“…Death cause: died of CWP or its complications, such as tuberculosis, lung cancer [13,14], pulmonary heart disease, etc.Censored data: death from other causes, such as cardiovascular accidents, liver failure, accidents, and so on, or still alive at the end of observation. …”

Section: Methodsmentioning

confidence: 99%

“…Death cause: died of CWP or its complications, such as tuberculosis, lung cancer [13,14], pulmonary heart disease, etc.…”

Section: Methodsmentioning

confidence: 99%

Survival Analysis of Coal Workers’ Pneumoconiosis (CWP) Patients in a State-Owned Mine in the East of China from 1963 to 2014

Han

Gao

Yang

et al. 2017

IJERPH

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To investigate the mortality probability, life expectancy of coal workers’ pneumoconiosis (CWP), and related factors of life expectancy, a total of 495 patients with CWP were diagnosed and reported from 1963 to 2014 in a state-owned mine in the east of China. The life table method, log rank method, and Cox regression model were used for survival analysis. 95 out of 495 CWP died during this period. The mortality rate was 19.19%. The average life span was 12.1 (0.0–33.2) years and average death age was 57.4 (33.0–83.0) years. The life table indicated that overall mortality probability increased with the age of CWP patients. Life expectancy of CWP patients was prolonged to 4.3, 1.4, 1.2, and 1.4 years without death caused by pneumoconiosis, tuberculosis, lung cancer, and pulmonary heart disease respectively. The survival curve of CWP patients without pulmonary tuberculosis was higher (average 37.9 years) than patients with pulmonary tuberculosis (average 34.1 years). There was significant difference observed (χ2 = 6.196, p < 0.05). Three risk factors that include initial dust exposure year, age of onset, and first diagnostic stage were put into the Cox regression model for evaluation. The data indicated that prevention and treatment of CWP complication is important to improve patients’ survival rates.

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Mortality among workers employed in the mining industry in the United States: A 29‐year analysis of the National Health Interview Survey—Linked Mortality File, 1986‐2014

Adeyemi

2020

American J Industrial Med

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Background Working in the mining industry increases the risk of chronic diseases and mortality. We investigated overall and cause‐specific mortality rates among workers employed in the mining sector in the United States. Methods We pooled 29 years of National Health Interview Survey (NHIS) public‐use data from 1986 to 2014, with mortality follow‐up until 31 December 2015. We grouped respondents into the mining and nonmining sectors based on the responses given at the time of the NHIS interview. We compared the overall and cause‐specific mortality rates using standardized mortality ratios (SMR) and 95% confidence interval (CI) adjusted for the competing cause of death. Results From 1986 to 2014, an estimated 14 million deaths were recorded among subjects eligible for mortality follow‐up. Of these, an estimated 50,000 deaths occurred among those working in the mining sector. A significantly higher overall mortality (SMR = 1.26, 95% CI: 1.17‐1.36), and mortality from heart diseases (adjusted SMR = 1.56, 95% CI: 1.31‐1.83), cancer (adjusted SMR = 1.30, 95% CI: 1.14‐1.48) and unintentional injuries (adjusted SMR = 1.41, 95%CI: 1.03‐1.85) were observed among those employed in the mining sector. When the analyses were restricted to men, only the SMRs for heart disease and cancer remained statistically significant. No elevated SMR for deaths from chronic lower respiratory disease was observed in the study. Conclusion Workers employed in the mining sector have a significantly increased total death rate and death rates from heart disease, cancer, and unintentional injuries.

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Cancer incidence in Czech black coal miners in association with coalworkers’ pneumoconiosis

Cited by 24 publications

References 21 publications

Mortality in Miners with Coal-Workers’ Pneumoconiosis in the Czech Republic in the Period 1992–2013

Mortality in Miners with Coal-Workers’ Pneumoconiosis in the Czech Republic in the Period 1992–2013

Survival Analysis of Coal Workers’ Pneumoconiosis (CWP) Patients in a State-Owned Mine in the East of China from 1963 to 2014

Mortality among workers employed in the mining industry in the United States: A 29‐year analysis of the National Health Interview Survey—Linked Mortality File, 1986‐2014

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