Annals of Occupational and Environmental Medicine

Seong Jin Ryu

2 Articles

Association between Job Stress and Alexithymic Traits: Seong Jin Ryu, Ja Hyun Kim, Soon Woo Jang, Hyung Joon Jhun, Byoung Gwon Kim, Jong Tae Park; Korean Journal of Occupational and Environmental Medicine 2008;20(4):295-301. Published online December 31, 2008; DOI: https://doi.org/10.35371/kjoem.2008.20.4.295

OBJECTIVES
We evaluated the association between job stress and alexithymic traits in Korean workers.
METHODS
Workers (n=521) who visited two university hospitals for medical check-ups were recruited for this study. Job stress was evaluated using the Korean version of Karasek's Job Content Questionnaire (JCQ), and alexithymic traits were assessed using the Korean version of the Toronto Alexithymia Scale (TAS-20K). Crude and adjusted odds ratios (ORs) of job stress scales (job strain, job insecurity, and job dissatisfaction) with alexithymic traits(total TAS score > or =52) were calculated.
RESULTS
High job strain compared with low strain had a high, but insignificant association with alexithymic traits (adjusted OR, 2.26; 95% CI, 0.93-5.44). High job insecurity (adjusted OR, 2.26; 95% CI, 1.21-4.22), and high job dissatisfaction (adjusted OR, 1.99; 95% CI, 1.06-3.74) had significant associations with alexithymic traits.
CONCLUSIONS
This study suggests that job stress is associated with alexithymic traits in workers.

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Retraction Notice to: "Association between Job Stress and Alexithymic Traits" [Korean J Occup Environ Med 20(4) (2008) 295-301] and "Estimated Number of Korean Workers with Back Pain and Population-based Associated Factors of Back Pain: Data from the Four

Korean Journal of Occupational and Environmental Medicine.2011; 23(3): 350. CrossRef

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A Case of Trichloroethylene Intoxication with Neuropsychiatric Symptoms: Ja Hyun Kim, Seong Jin Ryu, Byoung Gwon Kim, Hyung Joon Jhun, Jong Tae Park, Hae Joon Kim; Korean Journal of Occupational and Environmental Medicine 2008;20(1):54-61. Published online March 31, 2008; DOI: https://doi.org/10.35371/kjoem.2008.20.1.54

Abstract PDF

BACKGROUND
Trichloroethylene (TCE) has been widely used as a typewriter correction fluid, paint remover, adhesive, spot removers and, particularly, as a degreasing agent in metal-fabricating operation. However, few studies have reported on the effects of TCE intoxication, in spite of numerous occupational accidents arising from TCE intoxication, even until quite recently used in small companies. TCE affects mainly the central nervous system (CNS) and is carcinogenic, even when carefully used and managed.
CASE
REPORT: A 48-year-old male worker visited our hospital complaining of decreased motivation and general weakness. In history taking, the patient had suffered insomnia, memory disturbance, stuttering, loss of interest and sexual desire, depressive mood for 4 years, dysesthesia with tingling sensation and pain in both extremities, and a nauseas feeling similar to a hangover which had been aggravated for 4 months before admission. The patient had been engaged in metal degreasing with TCE for 8 years. Electromyography indicated disturbance of autonomic function, but there was neither peripheral neuropathy nor cervical radiculopathy. Organic abnormalities including cerebellar atrophy and CNS infection were ruled out, while there was no indication of malignancy in magnetic resonance imaging (MRI) and metabolic disorders and electrolyte imbalances in laboratory test. The authors performed biological monitoring for the possible exposed chemicals. Urinary 2,5-hexanedione, a metabolite of n-hexane, was undetected but 3,331.1 mg/g creatinine of urinary trichloro-compounds, a metabolite of TCE, was detected. The patient was diagnosed as TCE intoxication due to a level of urinary trichloro-compounds in excess of the normal range (300 mg/g creatinine), in addition to an occupational history and clinical symptoms. TCE exposure was stopped in admission and the neuropsychiatric symptoms of the patient were improved as the urinary trichloro-compounds were decreased from 3,331.1 mg/g creatinine to 64.6 mg/g creatinine in 5 days.
CONCLUSION
Low-dose, chronic TCE intoxication shows neuropsychiatric symptoms, which are often misrecognized merely as a psychiatric disorder; its appropriate diagnosis, early treatment and exposure assessment are therefore difficult. The neuropsychiatric symptoms in workers who have been exposed to TCE should be monitored, detailed job history should be taken and biological monitoring should be conducted to gain early insight of chronic TCE exposure.

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Occupational Psychiatric Disorders in Korea
Kyeong-Sook Choi, Seong-Kyu Kang
Journal of Korean Medical Science.2010; 25(Suppl): S87. CrossRef
Occupational Neurologic Disorders in Korea
Yangho Kim, Kyoung Sook Jeong, Yong-Hun Yun, Myoung-Soon Oh
Journal of Clinical Neurology.2010; 6(2): 64. CrossRef
Occupational Neurological Disorders in Korea
Eun-A Kim, Seong-Kyu Kang
Journal of Korean Medical Science.2010; 25(Suppl): S26. CrossRef

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