Coal mining and chronic obstructive pulmonary disease: a review of the evidence

Coggon, David; Taylor, Alison

doi:10.1136/thx.53.5.398

Cited by 136 publications

(84 citation statements)

References 32 publications

(37 reference statements)

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“…In their reanalysis of British coal miners, Marine et al (21) found an effect on FEV 1 of dust exposure alone when disentangling the pneumoconiotic effect of respiratory conditions. A comprehensive review (11) further supports the argument that coal mine dust might cause obstructive lung disease as do autopsy data from coal miners and non-miners where the cumulative exposure to respirable coal mine Continued or coal dust retained in the lungs were significant predictors for emphysema severity (22). As with the studies of airway obstruction and coal mining, the studies on gold mining have the inherent challenge of disentangling the restrictive deficits associated with the dust exposure from obstructive deficits.…”

Section: Studies Of Airway Obstruction Not Included In the Systematicmentioning

confidence: 75%

“…As early as 1985, however, Margaret Becklake concluded that occupational exposure to dust and/or dust and fumes may have a causal link to the pathogenesis of COPD, often relying on studies in which work-related factors were included as confounders to be adjusted for in an analysis of smoking effects (9,10). Coggon and Newman Taylor (11) made an extensive analysis of the literature on airflow obstruction among coal miners, concluding there was a significant association between exposure to coal dust and the development of chronic airflow obstruction. Additional systematic reviews also concluded there is indeed a causal association between occupational exposure and COPD (12)(13)(14)(15)(16).…”

mentioning

confidence: 99%

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Occupational chronic obstructive pulmonary disease: a systematic literature review

Omland

Würtz

Aasen³

et al. 2013

Scand J Work Environ Health

117

100

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Occupational chronic obstructive pulmonary disease: a systematic literature review by Omland Ø, Würtz ET, Aasen TB, Blanc P, Brisman J, Miller MR, Pedersen OF, Schlünssen V, Sigsgaard T, Ulrik CS, Viskum S This review on occupational chronic obstructive pulmonary disease (COPD) addresses some of the potential limitations of earlier assessments by restricting the studies included to high quality epidemiological analysis involving only spirometrically confirmed air-flow obstruction as the outcome. The authors combined this with minimal requirements for exposure characterization allowing for analysis of population-based studies. Affiliation 19Review Scand J Work Environ Health. 2014;40(1):19-35. doi:10.5271/sjweh.3400 Occupational chronic obstructive pulmonary disease: a systematic literature review Objective Occupational-attributable chronic obstructive pulmonary disease (COPD) presents a substantial health challenge. Focusing on spirometric criteria for airflow obstruction, this review of occupational COPD includes both population-wide and industry-specific exposures.Methods We used PubMed and Embase to identify relevant original epidemiological peer-reviewed articles, supplemented with citations identified from references in key review articles. This yielded 4528 citations. Articles were excluded for lack of lung function measurement, insufficient occupational exposure classification, lack of either external or internal referents, non-accounting of age or smoking effect, or major analytic inadequacies preventing interpretation of findings. A structured data extraction sheet was used for the remaining 147 articles. Final inclusion was based on a positive qualitative Scottish Intercollegiate Guidelines Network (SIGN) score (≥2+) for study quality, yielding 25 population-wide and 34 industry/occupation-specific studies, 15 on inorganic and 19 on organic dust exposure, respectively. ResultsThere was a consistent and predominantly significant association between occupational exposures and COPD in 22 of 25 population-based studies, 12 of 15 studies with an inorganic/mineral dust exposure, and 17 of 19 studies on organic exposure, even though the studies varied in design, populations, and the use of measures of exposure and outcome. A nearly uniform pattern of a dose-response relationship between various exposures and COPD was found, adding to the evidence that occupational exposures from vapors, gas, dust, and fumes are risk factors for COPD. ConclusionThere is strong and consistent evidence to support a causal association between multiple categories of occupational exposure and COPD, both within and across industry groups.Key terms: airflow obstruction; COPD; dust; fume; gas; lung function measurement; occupational exposure; vapor. Chronic obstructive pulmonary disease (COPD) represents serious morbidity and has emerged as a leading cause of death worldwide (1). Although tobacco smoking is the leading factor in the etiology of COPD, the disease may be caused by inhalation of different gases and aerosols among bot...

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Section: Studies Of Airway Obstruction Not Included In the Systematicmentioning

confidence: 75%

mentioning

confidence: 99%

Occupational chronic obstructive pulmonary disease: a systematic literature review

Omland

Würtz

Aasen³

et al. 2013

Scand J Work Environ Health

117

100

View full text Add to dashboard Cite

show abstract

“…This finding implies a possible interaction between smoking and occupational exposure to lignite dust regarding the impact on lung function. A significant interaction between smoking and coal dust-their combined effect appear to be additive-has been reported in terms of loss of pulmonary function 17) . These data could form the base for the development of workplace based antismoking policies.…”

Section: Discussionmentioning

confidence: 99%

Occupational Exposure to Lignite and Impact on Respiratory System among Heavy Industry Personnel

Drivas¹,

Rachiotis

Vlastos

et al. 2007

Ind Health

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Objective is to evaluate the impact of occupational exposure to lignite dust on respiratory system. 103 blue-collar workers exposed to lignite dust and 62 controls completed a questionnaire on respiratory symptoms and underwent spirometry. Levels of lignite dust in workplace were measured. Univariate and multivariate analysis of the data were performed. The concentration of lignite dust varied from 0.6 to 1.4 mg/m 3 . Current smokers and workers exposed to lignite dust presented higher prevalence of chronic bronchitis symptoms and of FEV<80% and FEV1/FVC<70%. Multivariate analysis has shown that smoking and occupational exposure to lignite dust were independent predictors of chronic bronchitis symptoms, as well as of an obstructive ventilation pattern. Further analysis showed that exposed workers who were current smokers presented a five fold rate for developing an obstructive ventilation pattern in comparison to exposed workers non currently smokers. Occupational exposure to lignite dust and smoking were independent determinants of chronic bronchitis symptoms and obstructive ventilation pattern. There is some evidence for a combined effect of smoking and lignite dust exposure on respiratory system.

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“…However, in recent years, an increasing consensus about the risk associated with dusty work has emerged [1][2][3][4]. One problem has been that measuring COPD in epidemiological studies is not simple, as no consensus exists regarding the epidemiological definition of COPD.…”

mentioning

confidence: 99%

Increased mortality in COPD among construction workers exposed to inorganic dust

Bergdahl¹,

Torén²,

Eriksson³

et al. 2004

Eur Respir J

176

119

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Coal mining and chronic obstructive pulmonary disease: a review of the evidence

Cited by 136 publications

References 32 publications

Occupational chronic obstructive pulmonary disease: a systematic literature review

Occupational chronic obstructive pulmonary disease: a systematic literature review

Occupational Exposure to Lignite and Impact on Respiratory System among Heavy Industry Personnel

Increased mortality in COPD among construction workers exposed to inorganic dust

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