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Level of Disability, Functioning, and Work Limitation

Association With Chronic Diseases in a Working Population

Fouad, Ahmed Mahmoud MD, MSc; Shebl, Fatma Mohamed MD, PhD; Gamal, Amira MD, PhD; Abdellah, Rasha Farouk MD, PhD; Amer, Shaimaa Ahmed MD, PhD; Waheed, Amani MD, PhD

Journal of Occupational and Environmental Medicine: August 2018 - Volume 60 - Issue 8 - p e390–e396
doi: 10.1097/JOM.0000000000001371
ORIGINAL ARTICLES
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Objective: Chronic diseases are among the major causes of disability, and are associated with substantial individual and societal economic losses. The objective of this study was to assess the association of the different levels of disability, functioning, and work limitation, with chronic diseases.

Methods: A total of 516 workers were classified according to chronic disease status, and evaluated for disability, functioning and work Limitation. Quantile regression was performed to assess the associations across the quantiles of the disability, functioning, and work limitation.

Results: Overall disability was significantly associated with chronic diseases across all quantiles, while work limitation was only significant at the median and higher quantiles. Functioning domains showed a variable pattern of associations across their quantiles.

Conclusions: Chronic diseases showed a variable magnitude and significance of associations across the levels of disability, functioning, and work limitation.

Department of Community Medicine, Faculty of Medicine, Suez Canal University, Ismailia, Egypt (Drs Fouad, Gamal, Abdellah, Amer, Waheed); and Department of Chronic Diseases Epidemiology, Yale School of Public Health, New Haven, Connecticut (Drs Fouad, Shebl).

Address correspondence to: Ahmed Mahmoud Fouad, MD, MSc, Department of Chronic Disease Epidemiology, Yale School of Public Health, 47 College Street, Suite 108, New Haven, CT 06520 (ahmed.mohamed@yale.edu).

Funding: This study was supported by Suez Canal University, Egypt; and The Cultural Affairs and Mission Sector of The Egyptian Ministry of Higher Education. Dr Fouad is employed by Suez Canal University, and he has a postgraduate fellowship at Yale School of Public Health funded by The Cultural Affairs and Mission Sector of The Egyptian Ministry of Higher Education. He has no financial relationship with a commercial entity having an interest in the subject matter of the manuscript.

The IRB of Faculty of Medicine, Suez Canal University has approved the protocol of this study in conformity with ethical and humane principles of research.

Conflicts of Interest: Authors Fouad, Shebl, Gamal, Abdellah, Amer, and Abdel-Halim have no relationships/conditions/circumstances that present a potential conflict of interest.

Copyright © 2018 by the American College of Occupational and Environmental Medicine