Natural Course of Nontraumatic Rotator Cuff Tendinitis and Shoulder Symptoms in a Working Population

Details

• Personal Author:
  Bao S ; Bonauto DK ; Fan ZJ ; Silverstein BA ; Smith C ; Viikari-Juntura E
• Description:
  This study assessed the prevalence, incidence, and persistence of nontraumatic rotator cuff tendinitis and shoulder symptoms over a 1-year period in a working population and the predictive value of symptoms and physical findings. A 1-year prospective study of 436 active workers was conducted at 12 different worksites. Detailed health interviews, psychosocial questionnaires, and physical examinations were conducted at baseline and again after 1 year, with shorter evaluations at 4 and 8 months. Individual observed exposure assessment of shoulder posture, arm-hand activity, and hand forces was conducted. The prevalence of rotator cuff tendinitis at baseline was 7.6% [95% confidence interval (95% CI 5.1-10.1%)] for the right and 4.8% (95% CI 3.0-7.0%) for the left, compared with shoulder symptoms of 18.6% (95% CI 14.9-22.3%) (right) and 11.2% (95% CI 8.2-14.2%) (left). The incidence of rotator cuff tendinitis was 5.5% (95% CI 2.8-6.8%) and 2.9% (95% CI 1.0-3.8%), respectively. Higher proportions of participants with current symptoms or physical findings at baseline became clinical cases after 1 year than those without symptoms or findings. The 1-year persistence of clinical case status was 31.3% (95% CI 26.9-35.7%) (right) and 31.6% (95% CI 27.2-36.0%) (left). There were significant differences at baseline between the asymptomatic participants and the clinical cases with respect to physical health on the 12-item Short-form Health Survey (P=0.0002), the perception of general health (P=0.0027), and the frequency of high hand force exposure (P=0.0177). Considerable movement occurs between different stages of shoulder problems. Symptoms and physical findings alone appear to predict clinical case status within 1 year. Frequent follow-up is necessary to capture changes in health and exposure status in prospective studies. [Description provided by NIOSH]
• Subjects:
  Environmental Monitoring Musculoskeletal System Occupational Diseases Occupational Exposure Occupational Health Safety Surveys And Questionnaires
• Keywords:
  Arm-injuries Author Keywords: Active Worker Exposure-assessment Incidence Injuries Occupational-diseases Occupational-exposure Occupational-health Posture Prevalence Questionnaires Worker-health Workers

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• ISSN:
  0355-3140
• Document Type:
  Text
• Funding:
  Cooperative Agreement
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 10 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  99-108
• Volume:
  32
• Issue:
  2
• NIOSHTIC Number:
  nn:20031008
• Citation:
  Scand J Work Environ Health 2006 Apr; 32(2):99-108
• Contact Point Address:
  Safety and Health Assessment and Research for Prevention (SHARP), Washington State Department of Labor and Industries, PO Box 44330, Olympia, WA 98504-4330, USA
• Email:
  Silb235@lni.wa.gov
• Federal Fiscal Year:
  2006
• NORA Priority Area:
  Disease and Injury: Musculoskeletal Disorders of the Upper Extremities
• Performing Organization:
  Washington State Department of Labor and Industries
• Peer Reviewed:
  True
• Start Date:
  20000930
• Source Full Name:
  Scandinavian Journal of Work, Environment & Health
• End Date:
  20060929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6257518ffa4af4813546b90548d6cd2f53eabd463ce9680e60e77f38344654d3f0c87e1a31269edf13051b6ac128ca2344a3964f59a75b07cb4fd003cfd4e046
• Download URL:
  https://stacks.cdc.gov/view/cdc/191409/cdc_191409_DS1.pdf
• File Type:
  [PDF - 144.10 KB ]