Diverging trends of chronic bronchitis and smoking habits between 1998 and 2010

Simone Accordini, Angelo Guido Corsico, Isa Cerveri, Leonardo Antonicelli, Francesco Attena, Roberto Bono, Lucio Casali, Marcello Ferrari, Alessandro Fois, Pierpaolo Marchetti, Pietro Pirina, Roberta Tassinari, Giuseppe Verlato, Roberto de Marco

Research output: Contribution to journalArticlepeer-review

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 (

Original languageEnglish
Article number16
JournalRespiratory Research
Volume14
Issue number1
DOIs
Publication statusPublished - Feb 8 2013

Keywords

  • Allergic rhinitis
  • Asthma
  • Chronic bronchitis
  • Cigarette smoking
  • Epidemiology

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine

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