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Canadian Respiratory Journal
Volume 2016, Article ID 9242185, 5 pages
http://dx.doi.org/10.1155/2016/9242185
Research Article

Association between Air Pollution and Hemoptysis

1Respiratory Department, Hospital Universitari Germans Trias i Pujol, Carretera del Canyet, s/n, Badalona, 08916 Barcelona, Spain
2Ciber de Enfermedades Respiratorias (CIBERES), Carretera Soller km 12, Bunyola, 07110 Mallorca, Spain
3Fundació Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol, Carretera del Canyet, s/n, Badalona, 08916 Barcelona, Spain
4Department of Statistics, FIDMAG Research Unit, Sant Boi de Llobregat, 08830 Barcelona, Spain
5Ciber de Salud Mental (CIBERSAM), 28035 Madrid, Spain
6Departament de Medicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain

Received 26 March 2015; Accepted 17 September 2015

Copyright © 2016 Ignasi Garcia-Olive et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. The relationship between air pollution and exacerbation of respiratory diseases is well established. Nevertheless, its association with hemoptysis has been poorly investigated. This paper describes the relationship of air pollutants with severe hemoptysis. Methods. All consecutive subjects with severe hemoptysis during a 5-year period were included. The relationship between the contamination measurements and the frequency of embolizations was analyzed using Poisson regressions. In these regressions, the dependent variable was the monthly number of embolizations in a given month and the independent variable was either the concentration of an air contaminant during the same month, the concentration of the air contaminant during the previous month, or the difference between the two. Results. A higher total number of embolizations per month were observed over the months with increases in the concentration of NO. The number of embolizations was 2.0 in the 33 months with no increases in the concentration of NO, 2.1 in the 12 months with small increases, 2.2 in the 5 months with moderate increases, 2.5 in the 4 months with large increases, and 4.0 in the 5 months with very large increases. Conclusion. There is association between hemoptysis and increases in the concentration of atmospheric NO in Badalona (Spain).