1. Diverging trends of chronic bronchitis and smoking habits between 1998 and 2010
- Author
-
Angelo Corsico, Pietro Pirina, Leonardo Antonicelli, Simone Accordini, Isa Cerveri, Alessandro G. Fois, Francesco Attena, Lucio Casali, Roberta Tassinari, Roberto de Marco, Roberto Bono, Marcello Ferrari, Pierpaolo Marchetti, Giuseppe Verlato, Accordini, S, Corsico, Ag, Cerveri, I, Antonicelli, L, Attena, Francesco, Bono, R, Casali, L, Ferrari, M, Fois, A, Marchetti, P, Pirina, P, Tassinari, R, Verlato, G, and de Marco, R.
- Subjects
Adult ,Male ,Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Chronic bronchitis ,Rhinitis, Allergic, Perennial ,Cross-sectional study ,Population ,Prevalence ,cigarette smoking ,Young Adult ,Internal medicine ,Epidemiology ,medicine ,Humans ,Allergic rhinitis ,Asthma ,Cigarette smoking ,Young adult ,education ,allergic rhinitis, asthma, chronic bronchitis, cigarette smoking, epidemiology ,lcsh:RC705-779 ,education.field_of_study ,allergic rhinitis ,business.industry ,Research ,Smoking ,lcsh:Diseases of the respiratory system ,asthma ,medicine.disease ,Rhinitis, Allergic ,Bronchitis, Chronic ,Cross-Sectional Studies ,Italy ,Relative risk ,Physical therapy ,chronic bronchitis ,Female ,epidemiology ,allergic rhiniti ,business - Abstract
Background No study has been carried out on the time trend in the prevalence of chronic bronchitis (CB) in recent years, despite its clinical and epidemiological relevance. We evaluated the trend in CB prevalence during the past decade among young Italian adults. Methods A screening questionnaire was mailed to general population samples of 20–44 year-old subjects in two cross-sectional surveys: the Italian Study on Asthma in Young Adults (ISAYA) (1998/2000; n = 18,873, 9 centres) and the screening stage of the Gene Environment Interactions in Respiratory Diseases (GEIRD) study (2007/2010; n = 10,494, 7 centres). CB was defined as having cough and phlegm on most days for a minimum of 3 months a year and for at least 2 successive years. The prevalence rates and the risk ratios (RRs) for the association between CB and each potential predictor were adjusted for gender, age, season of response, type of contact, cumulative response rate, and centre. Results CB prevalence was 12.5% (95% CI: 12.1-12.9%) in 1998/2000 and 12.6% (95% CI: 11.7-13.7%) in 2007/2010; it increased among never smokers (from 7.6 to 9.1%, p = 0.003), current light smokers ( Conclusions Despite the significant reduction in current smoking, CB prevalence did not vary among young Italian adults. The temporal pattern of CB prevalence can only be partly explained by the increase of unemployment/premature retirement, asthma and allergic rhinitis, and suggests that other factors could have played a role.
- Full Text
- View/download PDF