Assessment of mental health and psychosocial factors in French merchant officer cadets.

BACKGROUND: Several studies have demonstrated the existence of psychological pathologies and psychosocial risks among seafarers, particularly merchant navy officers. To date, there is no study of merchant navy officer cadets. First aims are to assess anxiety and depression disorders, framework, work strain and social support in this population. MATERIALS AND METHODS: A questionnaire including demographic and sailing data to which we added the Hospital Anxiety and Depression Scale (HAD) and Karasek questionnaire was developed. All students were approached and completed the questionnaire anonymously by electronic means. RESULTS: One hundred and seventy questionnaires could be included. The population was predominantly male (76.4%), and the average age of the students was 21.7 years. The means of the HAD anxiety and HAD depression were 6.9 and 5.37, respectively. According to Karasek classification, we noted that the "active" class was the most represented with 29.4% of students, followed by the "high strain" and "low strain" classes with 27.6%. The "passive" class was the least represented with 15.3%. CONCLUSIONS: We found a predominance of anxiety disorders but few signs of depression. Signs of "high strain" according to Karasek were found in 27.6% of the population of these young officers. Job demand was linked to mean of anxiety and depression disorders declared in HAD questionnaire. Being a woman was associated with anxiety but not depression symptoms. Prevention programme to decrease the level of job demand and increase decision latitude and social support seems relevant for mental health disorders in merchant officers.

Hearing Impairment in French Merchant Seafarers: Retrospective Study on Data from 8308 Audiometric Tests.

Background: A high level of occupational noise exposure has been noted in the fishing sector. Yet, less is known regarding other navigation groups, such as merchant seafarers, since a French study in the 1980s. This study assesses hearing impairment (HI) in a French merchant seafarers' population. Methods: We collected data of all audiograms performed in 2018 and 2019 for French merchant seafarers. For each seafarer, hearing ability was measured in both ears using pure-tone audiometry at the following frequencies: 0.5, 1, 2, 3, 4, 6, and 8 kHz. Hearing threshold levels (HTLs), or the intensity of sound below which no sound is detected, were measured in decibels Sound Pressure Level (dB SPL) at each frequency and recorded in 5 dB increments. For HI, we used the validated definition of the American Speech−Language−Hearing Association (ASHA). Results: We were able to include statistical analysis results of 8308 audiograms. In a multiple logistic regression adjusted for age, experience, and class of navigation, we found that experience of more than 14 years Odds Ratio OR 1.28 (CI 95% 1.07−1.53), age 31−40 OR 2.2 (CI 95% 1.4−3.4), and >40 years OR 14, 3 (IC 95% 9.7−21) and marine engineers OR 1.26 (IC 95% 1.01−1.57) were still risk factors for HI. Conclusion: In 2018, Marine engineers were still the workers' group with a higher risk of HI in merchant seafarers but, notch at 4 Hz, specific of noise-induced hearing loss, has improved. They have an HI close to the definition of socioacousis and mean deficit differences with deck and services' merchant seafarers improved. Our results could be interpreted as a limitation of occupational noise exposure impact in a merchant seafarers' population, needing an improvement in prevention measures and also encouraged to continue to improve onboard working conditions.

Seafarers' mental health in the COVID-19 era: lost at sea?

Seafarers are exposed to several physical and psychosocial stressors. Recent studies highlighted specific disorders as fatigue, boredom and diseases as depression. Seafarers are also commonly exposed to post-traumatic stress disorder (piracy, accidents, threats). Coronavirus disease 2019 (COVID-19) impacts seafarers with an estimated 400,000 of whom are stranded on vessels around the world, with extended time on board, repatriation's difficulties and the financial concerns of the unexpectedly unemployed. International Maritime Organization has established the Seafarer Crisis Action Team to help them. In France, in last 10 months a dedicated call centre received 142 calls from 32 seafarers for psychological phone consultations mostly linked to this era. With the increase of duration of the COVID-19 crisis, psychological health care, repatriations and financial solutions are needed for seafarers.

Seasickness and its impact on researchers' work on board French oceanographic vessels.

BACKGROUND: Seasickness (SS) is an often hidden pathology, but one that can significantly disrupt work on board. The aim of the study is to evaluate the influence of SS on the workability of workers on board vessels. MATERIALS AND METHODS: We performed a cross-sectional questionnaire study conducted on 250 oceanographers in 2015 during 3 months. Based on the "Bos seasickness susceptibility questionnaire", we created a specific questionnaire with 49 questions. RESULTS: 151 men and 72 women responded to the survey. 188 of them (91.7% of women and 80.8% of men) report being seasick, either occasionally (69%) or at each boarding where there is female predominance (23.6% vs. 11.3% for men). The major symptoms are nausea (82%) and vomiting (56%). 60% of the workers think that SS has an influence on the success of their mission, by first affecting their mood (50%), relationship (23%), and increased risk of accidents such as falls, accidents on machines or in laboratories (40%). Antinaupathic treatments also produce deleterious effects on their workstation. Women have higher risk of developing SS (odds ratio [OR] 2.6; 95% confidence interval [CI] 1.03-6.6; p = 0.04), more frequently taking medicines when ill (OR 4.1; 95% CI 1.27-13.2; p = 0.004) and coming with her own tablets (OR 2.3; 95% CI 1.3-4.1; p = 0.04). CONCLUSIONS: Gender is a trending factor of SS. Information on SS clinical signs, impact and therapeutics could be prone to prevent sickness and impact of it on workability.

Comment on Oldenburg, M., Jensen, H.J. Stress and Strain among Seafarers Related to the Occupational Groups. Int. J. Environ. Res. Public Health 2019, doi:10.3390/ijerph16071153.

Recently, Oldenburg M published an article in the journal "Communication" titled "Stress and Strain among Seafarers Related to the Occupational Groups" [...].

About the relationship between ship noise and the occurrence of arterial hypertension in seafarers.

No abstract because letter to editor.

Don't forget about seafarer's boredom.

BACKGROUND: The question we asked was whether it is worthwhile screening for seafarers who are prone to boredom, and whose mental health might deteriorate on board because of the particular character of life at sea. MATERIALS AND METHODS: We used the Farmer and Sundberg Boredom Proneness Scale (BPS), validated in French, as well as the Zigmond and Snaith Hospital Anxiety and Depression Scale (HADS). The survey was voluntary and responses were collected by means of questionnaires which were returned by post. RESULTS: Eighty seafarers (40 officers and 40 crew) as well as 63 office staff from the same shipping company were included in the survey. We found a significant difference between officers and operational personnel: average score of 8.4 ± 5 (median = 7) for officers and 10.2 ± 4.8 (median = 10) for operational personnel. 21% of the officers have scores greater than or equal to 12 compared with 41% of the crew. There is a significant correlation between the BPS and HADS test scores, in terms of depression, for the office staff and the seafarers taken as a whole; this correlation being highly significant among officers (r = +0.85), but only marginally significant among crew members (r = +0.54). CONCLUSIONS: The BPS may be useful in screening for seafarers prone to boredom and depression for their fitness for embarkation.

Respiratory assessment of refractory ceramic fibers in a heating technician population.

Refractory ceramic fibers (RCF) have been extensively used for insulation in condensing boilers. The aim of this study was to evaluate the respiratory exposure to these fibers among maintenance heating technicians. We first created a working group (Carsat Brittany and Finistère Occupational Health Services) and carried out a sampling strategy. Atmospheric measurements were done during work tasks, and filters were analyzed by phase contrast microscopy (PCM) and scanning electron microscopy (SEM) in French approved laboratories. Four companies were included for a total of 15 days of work. During those 15 workdays, 12 SEM and 21 PCM samples were taken and analyzed. The phase contrast microscopy and SEM average results were 0.04 and 0.004 fibers/cm3, respectively. In conclusion, the study confirms heating technician RCF respiratory exposure during maintenance work for both condensation gas boilers and atmospheric boilers. Collective and individual prevention measures should be implemented along with appropriate medical follow-up.

Exposure to phosphine in maritime transport: a real and important occupational risk: a report of three cases.

In maritime transport, to assess the risks of insect pests spreading, fumigation is recommended by the Food and Agriculture Organisation. Fumigant mostly used for foodstuffs is the phosphine gas generated by the reaction of aluminium phosphide and moisture in the atmosphere. In this article, we first discuss phosphine toxicity to humans and then we describe three cases of occupational exposure in maritime transport of cereals. We found phosphine level higher than 20 ppm in tank atmosphere of bulk carriers and levels from 2 to 3.5 ppm in port silos and port warehouses where cereals were unloaded. Two weeks later, atmospheric measurements in a silo were still at 0.8 ppm. In this case, 3 workers described symptoms which could be linked with phosphine. Exposures to phosphine and cases in maritime transport are surely underestimated. Exposure could occur at sea, in harbour but also in port warehouses, trucks and silos or warehouses along logistic chain. All workers in the chain could be exposed. We can recommend research aiming at the development of alternative techniques using a less harmful gas for humans. At individual level, we propose that, along with the training for employees, workers potentially exposed should wear a test strip (phosphine detector strips) or a personal gas badge with appropriate maintenance.

Occupational asthma in maritime environments: an update.

In 2006 we published our first review based on the available literature on occupational asthma in maritime environments in the "International Maritime Health" journal. Since then, we have obtained a great deal of new knowledge on asthma in seafood workers and fishermen and on the impact of exposures from sulphites preservatives, container fumigants etc. in maritime workers. This review aims to provide an update of the current knowledge base about occupational asthma in a maritime context and to provide recommendations regarding medical surveillance of workers at risk.