Prevalence of chronic obstructive respiratory diseases amongst fishermen

The objective was to screen and evaluate the prevalence of respiratory diseases and obstructive ventilatory defects among fishermen in Morocco.

This observational and cross-sectional epidemiological study involved 924 men over 20 years old and with at least two years of seniority. It included a questionnaire and a spirometry. The questionnaire is composed of four sections: sociodemographic and occupational characteristics, toxic habits, medical history and respiratory clinical symptoms.

The prevalence of symptoms of tracheobronchial irritation was 9.2% for cough, 8.2% for sputum 7.8% for dyspnoea and chest wheezing 8.1%. The frequency of rhinitis was 17.1%, asthma 6.8%, chronic bronchitis 5.6% and chronic obstructive pulmonary disease (COPD) 4.1% (5.4% for current and former smokers versus 1.1% for non-smokers). The prevalence was reaching 6.8% among those who smoked more than 10 pack-years and 17.9% among those who smoked more than 20 pack-years. Among subjects over 40 years old who had smoked more than 10 pack-years, the prevalence of COPD was 8.1%. The comorbidities were frequent.

Smoking was very common among fishermen. Symptoms and respiratory diseases remain underdiagnosed and undertreated. Prevention and early detection must be a priority in this sector.