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

100%

Tomaskova H., Jirak Z., Splichalova A., Urban P.

International Journal of Occupational Medicine and Environmental Health

2012

vol. 25

issue 2

137-144

Objective: The aim of the study was comparison of cancer incidence risk of lungs, stomach, colon, bladder and kidneys from ex-miners of black coal mines and the general male population of the Czech Republic. Materials and methods: The analysis was conducted in two cohorts of ex-miners according to the presence of coalworkers’ pneumoconiosis (CWP). The first cohort included the miners without CWP (N = 6705), and the second cohort included the miners who were compensated for CWP (N = 2158). Personal and occupational data was merged with the data in the National Population Register and the National Oncological Register for the period from 1992 to 2006. Cancer risk in miners in comparison to the general male population of the Czech Republic was evaluated by SIR (Standardized Incidence Ratio) and 95% confidence interval (CI). Results: About twice as high risk of lung cancer was found in miners with CWP (SIR = 2.21; 95% CI: 1.75–2.76). Lung cancer risk correlated with the severity of CWP (simple CWP SIR=1.96; 95% CI: 1.48–2.56, progressive massive fibrosis SIR = 4.29; 95% CI: 2.09–7.87). No increased risk of lung cancer was found in ex-miners without CWP. The risk of malignant neoplasm at the other selected sites was comparable with the risk in the general male population of the Czech Republic. Conclusions: This study found increased lung cancer risk in coal miners with CWP, but not in those without CWP, comparing with the general population. These results served as the basis for the inclusion of lung cancer in association with CWP into a new Czech list of occupational diseases.

Health status and physical fitness of mines rescue brigadesmen

76%

Tomaskova H., Jirak Z., Lvoncik S., Buzga M., Zavadilova V., Trlicova M.

International Journal of Occupational Medicine and Environmental Health

2015

vol. 28

issue 3

613-623

Objectives The aim of the study was to assess health status of regular and part-time mines rescue brigadesmen. Material and Methods A group of 685 mines rescue brigadesmen was examined within the preventive testing – a basic internal, biochemistry and anthropometric examination, physical fitness testing. Results The average age of the subjects was 41.96±7.18 years, the average exposure in mining was 20±8.1 years, out of that 11.95±7.85 years as mines rescue brigadesmen. Elevated levels of total serum cholesterol (T-CH) and low-density lipoprotein cholesterol (LDL-CH) were found in over 1/2 of the subjects. Systolic hypertension (systolic blood pressure (SBP) ≥ 140 mm Hg) was confirmed in 34%, overweight (body mass index (BMI) ≥ 25) in 62.3% and obesity (BMI ≥ 30) in 20.4% of the examined mines rescue brigadesmen. The metabolic syndrome was found in 15.2% of persons. The highest physical fitness was found in mines rescue brigadesmen and the lowest in mine officers. Limit values of maximum oxygen uptake ($\text{VO}_\text{2 max}$/kg) determined by the management of the mine rescue station were not reached by every 3rd of all mines rescue brigadesmen. Compared with the control group of the Czech and Slovak population, the rescuers are taller, have greater BMI, higher percentage of body fat in all age categories and proportionally to that they achieve a higher maximum minute oxygen uptake; however, in relative values per kg of body weight their physical fitness is practically the same as that of the controls. Conclusions The prevalence of risk factors of cardiovascular diseases and $\text{VO}_\text{2 max}$/kg in the group of the mines rescue brigadesmen is comparable with that in the general untrained Czech population.

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2 International Journal of Occupational Medicine and Environmental Health

2 Jirak Z.

2 Tomaskova H.

1 Buzga M.

1 Lvoncik S.

1 Splichalova A.

1 Trlicova M.

1 Urban P.

1 Zavadilova V.

1 2015

1 2012

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

Health status and physical fitness of mines rescue brigadesmen