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| Pàgina inicial > Articles > Articles publicats > Lifetime Occupational Exposure to Dusts, Gases and Fumes Is Associated with Bronchitis Symptoms and Higher Diffusion Capacity in COPD Patients |
(Hospital Universitari Vall d'Hebron) (Institut Hospital del Mar d'Investigacions Mèdiques) (Institut Hospital del Mar d'Investigacions Mèdiques) (Institut Hospital del Mar d'Investigacions Mèdiques) (Institut Hospital del Mar d'Investigacions Mèdiques) (Institut Hospital del Mar d'Investigacions Mèdiques)| Data: | 2014 |
| Resum: | Occupational exposure to dusts, gases and fumes has been associated with reduced FEV and sputum production in COPD patients. The effect of occupational exposure on other characteristics of COPD, especially those reflecting emphysema, has not been studied in these patients. We studied 338 patients hospitalized for a first exacerbation of COPD in 9 Spanish hospitals, obtaining full occupational history in a face-to-face interview; job codes were linked to a job exposure matrix for semi-quantitative estimation of exposure to mineral/biological dust, and gases/fumes for each job held. Patients underwent spirometry, diffusing capacity testing and analysis of gases in stable conditions. Quality of life, dyspnea and chronic bronchitis symptoms were determined with a questionnaire interview. A high- resolution CT scan was available in 133 patients. 94% of the patients included were men, with a mean age of 68(8. 5) years and a mean FEV% predicted 52 (16). High exposure to gases or fumes was associated with chronic bronchitis, and exposure to mineral dust and gases/fumes was associated with higher scores for symptom perception in the St. George's questionnaire. No occupational agent was associated with a lower FEV. High exposure to all occupational agents was associated with better lung diffusion capacity, in long-term quitters. In the subgroup with CT data, patients with emphysema had 18% lower DCO compared to those without emphysema. In our cohort of COPD patients, high exposure to gases or fumes was associated with chronic bronchitis, and high exposure to all occupational agents was consistently associated with better diffusion capacity in long-term quitters. |
| Ajuts: | Instituto de Salud Carlos III PI020541 Instituto de Salud Carlos III PI052486 Instituto de Salud Carlos III PI052302 Instituto de Salud Carlos III PI060684 Fundació la Marató de TV3 041110 Instituto de Salud Carlos III CP05/00118 |
| Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.  |
| Llengua: | Anglès |
| Document: | Article ; recerca ; Versió publicada |
| Publicat a: | PloS one, Vol. 9 (february 2014) , ISSN 1932-6203 |
