Annals of Occupational and Environmental Medicine

Original Article

A Study on the Cervicobrachial Syndrome among the Microwave-oven Assemblers (I): A Review on the Symptoms Investigated by the Questionnaire: Yang Ok Kim, Jong Park, So Yeon Ryu; Korean Journal of Occupational and Environmental Medicine 1995;7(2):306-319. Published online October 31, 1995; DOI: https://doi.org/10.35371/kjoem.1995.7.2.306

To find the characteristics of the subjective symptoms and its related factors among the patients with the cervicobrachial syndrome, an interview survey was made toward 137 patients complaining the symptoms in cervicobrachial area out of 313 workers occupied in a microwave-oven assembling factory from December 1993 to February 1994.
Results
were as follows : 1. The patients were classified by the severity of the syndrome as 6 persons (4.4%) at grade I (the mildest grade), 48 persons (35.0%) at grade II, 47 persons (34.4%) at grade III-1, 11 persons (8.0%) at grade III-2 and 25 persons (18.2%) at grade IV. 2. Only 3.6% of the total patients under the study felt the main symptoms of the cervicobrachial syndrome 36 months before this study, and then the number of patients increased gradually, but the incidence of the syndrome increased suddenly from 25.1% to 74.9% since the factory had elevated the height of the belt conveyer-worktables from 75.0cm to 87.7 cm 13 months before the study. 3. Although the higher percentage of the female workers felt the subjective symptoms including the pain at the neck and shoulder, the discomfort or pain at the back and the discomfort or pain at the wrist or the finger than male workers significantly (p<0.05). The male workers, however, showed more abnormal X-ray findings than the female workers significantly (p<0.05). 4. Between the prevalence of the cervicbbrachial syndrome and the number of actual workers occupied at the factory during last-24 months, a negative correlation (r=-0.508~r=-0.665) was observed. 5. The measured workplace environment of the studied factory (average temperature: 13.3 degrees C, average noise: 78.8 dB, average illumination: 241.4 Lux) was the poorer condition than the recommended level (17degrees C or more, lower than 75 dB and 400 Lux or more). 6. Neither items to check the cervicobrachial syndrome during the entrance and health maintenance examinations nor early treatment program for the syndrome were found, at the factory. In conclusion, the primary cause of the cervicobrachial syndrome of the workers were considered due to their repeated monotonous motions on the neck, the shoulder, the arms and the hands for a long duration (2-3 years) with the uncomfortable working posture under the uncomfortable workplace environments, and the condition got aggravated due to the inappropriated health management program for its secondary prevention.

Citations

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