In order to investigate the working conditions related to cumulative trauma disorder(CTD) and symptoms of CTD. a survey was conducted covering 305 employees who were working in three furniture manufacturing companies in Kyungin area. Data were collected by using questionnaire of the Personal Ergonomics Profiles.
The results were as follows :
１. The mean score of working conditions related to CTD was 0.95. The mean score of working conditions for labor workers were significantly higher than that of clerical workers. Among 4 factors of working conditions. the higher score were shown in the working and environment factors with 1.22 and 1.18, respectively.
２. Symptom prevalence rate of CTD for workers was 81.0％ : 82.9％ for labor workers and 77.0％ for clerical workers. As for symptom of CTD in body part, higher rate were shown in lower back with 50.2％, shoulder and neck with 38.4％ and 36.4％, respectively.
３. The score of symptom severity of CTD were 3.45. Significant difference was shown in symptom severity of forearm and wrist/hand part between labor and clerical workers. As for symptom severity of CTD in body part the higher score were shown in shoulder. ankle/foot, forearm, lower leg and elbow, and the highest score for labor workers were shoulder and ankle/foot and for clerical workers was lower back.
４. As a whole, symptom of CTD for workers positively correlated to working conditions.
５. Symptom of CTD for workers seemed to be significantly influenced by working factor, sex, working duration and working area factor.
|