Health status, sleeping habits and dyssomnia of coastal fishermen.

Background: The aim of this survey was to assess the health status, sleep habits and dyssomnia of coastal fishermen.

Materials and methods: This cross-sectional survey involved a representative sample of 948 coastal fishermen. All participants were men and had a regular activity for at least 2 years. We used an individual questionnaire inspired by those of Morphée network, the National Institute for Research and Security of France, and of the Karasek's Job Content Questionnaire.

Results: The prevalence of sociodemographic and individual parameters was similar in rotating shiftwork (RW) and in nocturnal work (NW). The average age of the total population was 38.8 ± 8.1 years. The prevalence of sleep habits and alertness disorders was similar in RW and in NW. The average daily sleep time of the total population was 5.5 ± 0.9 hours during the week, and 8.7 ± 0.8 hours during the holidays, Fridays and recovery days. Upon waking, 49.7% of the subjects felt tired and sleepy, 43.2% fit and 7.1% had a headache. 47.2% reported being chronic insomniac. The index of severity of insomnia was moderate to severe in 29.6%. The prevalence of excessive daytime sleepiness (Epworth > 10) was 16.2%. Fatigue, iso-strain and socio-economic concerns were associated with a higher risk of chronic insomnia.

Conclusions: Coastal fishermen were at a high risk of chronic dyssomnia and alertness disorders. Education initiatives should be conducted to raise fishermen's awareness on their health and safety consequences.