Dissertation/Thesis Abstract

Understanding the role of personal, psychosocial and occupational factors and their interactions on low back pain severity in workers
by Govindu, Nirathi Keerthi, Ph.D., Mississippi State University, 2013, 162; 3558902
Abstract (Summary)

Low back pain (LBP) is the most prevalent work-related musculoskeletal disorder. Occupational risk factors have been studied for current ergonomic prevention strategies; however, other underlying mechanisms may exist since not all workers performing the same task develop the same severity. Previous research has identified personal and psychosocial risk factors that also contribute to LBP. Research quantifying the interactive effects of the various personal, psychosocial and occupational factors is limited, along with research on the effect of risk factor combinations on LBP severity.

The objectives of this study were to: 1) study the various factors that are known to be involved in low back pain and analyze interactions, and 2) develop a model to predict low back pain and validate it. In order to address these objectives, 2 studies were conducted.

The first study investigated the effects of various personal, genetic, occupational and psychosocial factors on two subjective LBP severity ratings: Oswestry Disability Index (ODI) and a Visual Analog Scale (VAS), and three physician-based ratings: MRI severity, canal stenosis and nerve impingement. Personal and psychosocial factors, in addition to occupational factors, were found to significantly affect the severity ratings.

The second study involved building predictive models of LBP severity for each risk factor category as well as a combined risk factor model. Results showed that the combined risk factor models considering interaction effects both within and across risk factor categories were significantly better in predicting severity ratings than the individual models. However, validation conducted using 5 random samples showed inconsistent accuracies. Results obtained may help to develop a more reliable way to predict and, hence, prevent chronic LBP.

Indexing (document details)
Advisor: Babski-Reeves, Kari
Commitee: Burgess, Shane, Eksioglu, Burak, Peterson, Daniel, Strawderman, Lesley
School: Mississippi State University
Department: Industrial and Systems Engineering
School Location: United States -- Mississippi
Source: DAI-B 74/08(E), Dissertation Abstracts International
Subjects: Occupational health, Industrial engineering
Keywords: Low back pain severity, Occupational factors, Personal factors, Psychosocial factors
Publication Number: 3558902
ISBN: 9781303036637
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