Introduction: Chronic bronchitis is associated with an increased risk of COPD and health-related quality of life (HRQoL) impairment. The objectives of the study were to estimate the prevalence of chronic bronchitis and to describe its relations with quality of life.
Methods: The French Health Interview Survey was conducted in 2003 in a representative sample of households. Data were collected during an interviewer's visits to the home. Respiratory symptoms and HRQoL (SF-36) were assessed in 9,050 adults aged 45 years and older using a self-administered questionnaire.
Results: The prevalence of chronic bronchitis was estimated at 3.5%. Chronic bronchitis was associated with an impaired physical component summary score after adjusting for sex, age and dyspnoea. It was associated with a reduced mental component summary score (MCS) among men. In women, this association was only significant in the absence of dyspnoea.
Conclusion: The prevalence of chronic bronchitis was 3.5% among adults aged 45 years and older. Chronic bronchitis was associated with impairment in health-related quality of life.