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Alternative approaches for measuring duration of work disability after low back injury based on administrative workers' compensation data.

Authors
Krause-N; Dasinger-LK; Deegan-LJ; Brand-RJ; Rudolph-L
Source
Am J Ind Med 1999 Jun; 35(6):604-618
NIOSHTIC No.
20031727
Abstract
Background: Studies of low back pain (LBP) disability remain largely incomparable because of different outcome definitions. To date, systematic comparisons of alternative outcome measures have not been made. Methods: Duration of work disability was studied in a 3-year cohort of 850 workers' compensation LBP claimants. Eleven administrative outcome measures were compared using Kaplan-Meier estimates of the proportion of claimants still on disability benefits during 3.5 years of follow-up. Results: The estimated mean duration of work disability was 75 days for the first temporary disability (TD) episode, 108 days for cumulative time on TD, and 337 for total compensated days, which includes all types of wage replacement benefits during vocational rehabilitation, temporary and permanent disability. Conclusions: Commonly used administrative measures of lost workdays-time to first return to work and time on temporary disability-substantially underestimate the duration of work disability compared to measures based on all wage replacement benefits.
Keywords
Injuries; Lost-work-days; Back-injuries; Disabled-workers; Survival-rate; Work-capability; Administration; Occupations; Musculoskeletal-system-disorders; Workers; Author Keywords: cohort study; work disability; low back pain; wage replacement; occupational injury; workers' compensation; survival analysis
Contact
Niklas Krause, M.D., Ph.D., M.P.H., School of Public Health, Division of Epidemiology, 140 Warren Hall, University of California, Berkeley, CA 94720-7360
CODEN
AJIMD8
Publication Date
19990601
Document Type
Journal Article
Email Address
nkrause@uclink4.berkeley.edu
Funding Amount
876198
Funding Type
Grant
Fiscal Year
1999
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-CCR-912148
Issue of Publication
6
ISSN
0271-3586
Priority Area
Research Tools and Approaches: Health Services Research
Source Name
American Journal of Industrial Medicine
State
CA
Performing Organization
State of California, San Francisco, California
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