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Back injury in municipal workers: a case-control study.

Authors
Myers-AH; Baker-SP; Li-G; Smith-GS; Wiker-S; Liang-KY; Johnson-JV
Source
Am J Publ Health 1999 Jul; 89(7):1036-1041
NIOSHTIC No.
20031304
Abstract
OBJECTIVES: The purpose of this study was to identify factors associated with acute low back injury among municipal employees of a large city. METHODS: For each of 200 injured case patients, 2 coworker controls were randomly selected, the first matched on gender, job, and department and the second matched on gender and job classification. In-person interviews were conducted to collect data on demographics, work history, work characteristics, work injuries, back pain, psychosocial and work organization, health behaviors, and anthropometric and ergonomic factors related to the job. Psychosocial work organization variables were examined with factor analysis techniques; an aggregate value for job strain was entered into the final model. Risk factors were examined via multivariate logistic regression techniques. RESULTS: High job strain was the most important factor affecting back injury (odds ratio [OR] = 2.12, 95% confidence interval [CI] = 1.28, 3.52), and it showed a significant dose-response effect. Body mass index (OR = 1.54, 95% CI = 1.08, 2.18) and a work movement index (twisting, extended reaching, and stooping) (OR = 1.42, 95% CI = 0.97, 2.08) were also significant factors. CONCLUSIONS: Results suggest that increasing workers' control over their jobs reduces levels of job strain. Ergonomic strategies and worksite health promotion may help reduce other risk factors.
Keywords
Musculoskeletal-system; Skeletal-system; Back-injuries; Materials-handling; Biomechanics; Ergonomics; Muscle-function; Stress; Psychomotor-disorders; Psychophysiological-testing; Psychomotor-function
Contact
Harlem Center for Health Promotion and Disease Prevention, New York, NY
CODEN
AJHEAA
Publication Date
19990701
Document Type
Journal Article
Email Address
men11@columbia.edu
Funding Amount
595556
Funding Type
Grant
Fiscal Year
1999
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-002574
Issue of Publication
7
ISSN
0090-0036
Priority Area
Musculoskeletal System Disorders
Source Name
American Journal of Public Health
State
MD; NY
Performing Organization
The Johns Hopkins University School of Hygiene and Public Health 624 N. Broadway, Baltimore, Maryland 21205
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