CREAL. Centre de Recerca en Epidemiologia Ambiental


Cercador

Portada > Cercador de publicacions

TornarCercador de publicacions

Chinn, S., Jarvis, D., Luczynska, C. M., Ackermann-Liebrich, U., Anto, J. M., Cerveri, I., De Marco, R., Gislason, T., Heinrich, J., Janson, C., Kunzli, N., Leynaert, B., Neukirch, F., Schouten, J. P., Sunyer, J., Svanes, C., Wjst, M., Burney, P. G

An Increase in Bronchial Responsiveness is Associated with Continuing or Restarting Smoking

Am.J.Respir.Crit Care Med., 2005, 172, 8, 956, 61, IF: 8.689, PMID: 16020802

Rationale: Bronchial responsiveness has been found to be associated with smoking, atopy and lower lung function in cross-sectional studies, but there is little information on determinants of change in adults. Objectives: To analyze change in bronchial responsiveness in an international longitudinal community study. Methods: The study was carried out in 3993 participants in the European Community Respiratory Health Survey who had bronchial responsiveness measured in 1991-1993, when aged 20 to 44 years, and in 1998-2002. Measurements: Bronchial responsiveness was assessed by methacholine challenge. Serum samples were tested for total IgE, and for specific IgE to four common allergens. Smoking information was obtained from detailed administered questionnaires. Change in bronchial responsiveness was analyzed by change in IgE-sensitization, smoking and lung function, with tests of interaction terms with age and gender. Main Results: Continuing and restarting smokers had increasing bronchial responsiveness, approximately equivalent to a mean reduction in PD20 of 0.68 and 0.75 doubling doses, respectively, over 10 years, in addition to a small increase explained by decline in FEV1. No other risk factor for change in bronchial responsiveness was identified. Conclusions: Smoking is a risk factor for increasing bronchial responsiveness over and above the effect of decreasing lung function. Neither baseline IgE-sensitization nor change in sensitization was shown to be a risk factor for increasing BHR, the latter possibly due to little overall increase or decrease in sensitization

CRITICAL CARE MEDICINE, RESPIRATORY SYSTEM


Imatge ilustrativa


ISGlobal - Campus Mar · Doctor Aiguader, 88 · E-08003 Barcelona · Tel +34 93 214 73 00 · Fax +34 93 214 73 02 · e-mail: RSS

Una iniciativa de:


Context científic: