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1.
Biomed Environ Sci ; 28(9): 627-33, 2015 Sep.
Article in English | MEDLINE | ID: mdl-26464249

ABSTRACT

OBJECTIVE: In this study, we aimed at exploring the association between work-related musculoskeletal disorders (WMSDs) and work organization based on a case-control study. METHODS: A total of 1938 workers who claimed to suffer from WMSDs were selected from Beijing, Henan, Hubei, and the Guangdong province. The control group consisted of 2009 workers employed in similar industries without severe disease or musculoskeletal discomforts. We used a modified version of the questionnaire developed by the NMQ and the DMQ to investigate individual and work-related factors. RESULTS: A total of 13 variables (P<0.1) were selected by the chi-square test and finally, 7 variables entered into the equation, with 6 variables reaching statistical significance (P<0.05). The odds ratios (OR) of 'work changing with season' and 'sufficient rest time' did not reach 1 (0.749 and 0.441, respectively). In addition, 'sufficient rest time' seemed to be the stronger protective factor according to its higher standardized coefficient. And 'repetitive work every minute', 'constantly repetitive work' (every day), 'shortage of site personnel', and 'often switching shifts with others' seemed to be the risk factors. CONCLUSION: Work organization may have comprehensive effects on the occurrence of WMSDs. This pattern of associations suggests that further investigation into the mechanism of how work organization affects the prevalence of WMSDs is required.


Subject(s)
Musculoskeletal Diseases/epidemiology , Occupational Diseases/epidemiology , Personnel Staffing and Scheduling/organization & administration , Workplace/organization & administration , Adult , Case-Control Studies , Chi-Square Distribution , China/epidemiology , Cross-Sectional Studies , Cumulative Trauma Disorders/epidemiology , Cumulative Trauma Disorders/etiology , Demography , Ergonomics/standards , Female , Humans , Logistic Models , Male , Musculoskeletal Diseases/etiology , Occupational Diseases/etiology , Prevalence , Risk Factors , Seasons , Surveys and Questionnaires , Work Schedule Tolerance/physiology , Young Adult
2.
Beijing Da Xue Xue Bao Yi Xue Ban ; 43(3): 370-4, 2011 Jun 18.
Article in Chinese | MEDLINE | ID: mdl-21681266

ABSTRACT

OBJECTIVE: To investigate and analyze present conditions of the assembling line illumination in our country, and to set the recommended values of illuminance standard. METHODS: Questionnaires and field surveys were used in this investigation. A total of 752 workers from seven factories in textile, shoes and electronics industries were selected for the questionnaire survey and site measurement, and corresponding analyses made with SPSS 13.0 statistic software. RESULTS: Uniformity of illumination, definition in working face, general satisfactory degrees, asthenopia were significantly correlated with each other. Assembly line illuminances for five different visual characteristics were recommended in this paper. The illuminances were 500-1 000-1 500 lx, 300-500-1 000 lx, 200-300-750 lx, 100-300-500 lx, 50-100-200 lx, respectively. CONCLUSION: Present conditions of the assembling line illumination are less than satisfactory, uniformity of illumination is on the low side, and there is no assembling line illuminance standard for general satisfactory degrees and asthenopia of workers. The related work should be further improved.


Subject(s)
Industry , Lighting/standards , Occupational Health , Vision Disorders/prevention & control , Workplace , Adult , China , Electronics , Female , Humans , Male , Shoes , Surveys and Questionnaires , Textile Industry
3.
Article in Chinese | MEDLINE | ID: mdl-21619813

ABSTRACT

OBJECTIVE: To investigate the interactive effect of job task and psychosocial factors on the outcomes of musculoskeletal disorders. METHODS: 653 workers from different type of manufacturing industries and administration office recruited in a cross-sectional epidemiological survey. The Quick Exposure Check (QEC) was applied to assess the ergonomic load of job task, Job Content Questionnaire (JCQ) for identifying psychological characteristics, and Nordic Standardized Questionnaire for investigating outcomes of WMSDs. RESULTS: The prevalence of WMSD in shoulder, upper back, lower back and hand/wrist were significantly different under a variety of combined job task and psychosocial characteristics (P < 0.05 or P < 0.01). The more physical and psychological loads, the higher prevalence of WMSDs were revealed. By using multivariate analyses, a potential interactive effect was found in terms of the WMSDs symptoms in hand/wrist, shoulder, upper back and lower back after adjusted by work year, age, and gender. CONCLUSIONS: Higher physical load and greater psychosocial risk are more frequent self-reported symptoms of WMSDs than those of lower exposures. Ergonomic intervention strategies aimed at reducing the incidence of WMSDs should not only be focused on control of physical work factors but also psychosocial risks of relevance.


Subject(s)
Musculoskeletal Diseases/etiology , Musculoskeletal Diseases/psychology , Occupational Diseases/etiology , Occupational Diseases/psychology , Stress, Psychological , Task Performance and Analysis , Adolescent , Adult , Female , Humans , Male , Middle Aged , Surveys and Questionnaires , Young Adult
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