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Diving patterns and decompression sickness among South Korean fishery divers
Su Gang Cha1, Young Seok Byun2, Man Joong Jeon2,3
1Department of Medical Science, Graduate School of Yeungnam University, Daegu, Republic of Korea.
Journal of Occupational Health
|January 31, 2019
Summary
South Korean fishery divers experience high rates of decompression sickness (DCS) due to repetitive, deep dives. Factors like frequent workdays and rapid ascents significantly increase DCS risk, highlighting the need for diver registries.
Area of Science:
- Occupational Health
- Diving Medicine
- Hyperbaric Physiology
Background:
- Fishery diving is a significant occupation in South Korea.
- Understanding diving practices and associated health risks like decompression sickness (DCS) is crucial for diver safety.
- Current regulations may not adequately cover all fishery divers.
Purpose of the Study:
- To characterize the diving practices of South Korean fishery divers.
- To determine the incidence of decompression sickness (DCS) in this population.
- To identify risk factors associated with DCS in fishery divers.
Main Methods:
- A questionnaire survey was distributed to 215 registered boat owners, with 196 fishery divers responding.
- Data collected included demographics, diving habits, and DCS experiences.
- DCS was categorized into Type I and Type II based on symptom presentation.
Main Results:
- The average career length was 18.1 years, with divers working 10.8 months/year.
- High incidence of DCS symptoms (84.7%) was reported.
- Increased working days, dives per day, working depth, and short surface intervals were linked to higher DCS incidence.
Conclusions:
- South Korean fishery divers exhibit high susceptibility to DCS, driven by repetitive dives for economic reasons.
- Key risk factors identified include working days per month, dives per day, bottom time, and rapid ascent.
- Establishing registries for fishery divers is recommended to improve safety and regulatory oversight.
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