RT Journal Article SR Electronic T1 Chronic bronchitis among French adults: high prevalence and underdiagnosis JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 806 OP 812 DO 10.1183/09031936.02.00042002 VO 20 IS 4 A1 G.J. Huchon A1 A. Vergnenègre A1 F. Neukirch A1 G. Brami A1 N. Roche A1 P-M. Preux YR 2002 UL http://erj.ersjournals.com/content/20/4/806.abstract AB The aims of this survey were to determine the prevalence of symptoms indicative of chronic bronchitis (CB) in the French adult population, to identify the role of risk factors for CB, and to assess rates of CB diagnosis and pulmonary function testing (PFT) in the presence of CB. A representative sample of 14,076 individuals aged ≥25 yrs completed a self-administered questionnaire on symptoms, comorbidities, smoking history, sociodemographical data, and diagnosis and care by physicians. The prevalence of CB was 4.1% and the prevalence of chronic cough and/or expectoration was 11.7%. In individuals with comorbidity, these figures were 10.4% and 24.4%, respectively. Smoking was associated with an increased frequency of CB. In subjects with CB, 44.6% had PFT (spirometry or peak expiratory flow measurement), 24% were diagnosed as having CB, and 7.2% received care. Rates of diagnosis, PFT, and follow-up were lower in young individuals and in those without comorbidity. PFT and follow-up were less common in current smokers. Prevalence of chronic bronchitis in French adults is high and similar in magnitude to that of other industrialised countries. Comorbidities and tobacco smoking increase the frequency of chronic bronchitis symptoms. Chronic bronchitis is too infrequently diagnosed, investigated and cared for. This study was supported by grants from GlaxoSmithKline and Association pour l'Etude de la Respiration et de l'Environnement.