Abstract
Background: To date, there are few studies carried out on low back pain (LBP) among university teaching staff in developing countries despite academics being a high-risk group for LBP. In Kenya, to the best of our knowledge, there are no published studies that have investigated risk factors for LBP among teaching staff. The objectives of this study were to estimate the prevalence of LBP among teaching staff of the University of Nairobi (UoN), during the period June 2016 - May 2017, and to identify its socio-demographic and work-related risk factors. Methods: An analytical cross-sectional study design was used to estimate the prevalence and investigate the risk factors for LBP among 136 teaching staff of UoN. A semi-structured questionnaire was used to collect data on LBP history, work-related and socio-demographic characteristics of the study participants. The 12-month prevalence of LBP and its associated 95% exact binomial confidence interval were estimated. A mixed-effects logistic regression model was used to evaluate the relationship between the predictors and LBP. Results: The estimated 12-month prevalence of LBP was 64% (95% CI: 55.3%-72.0%). From the multivariable analysis, physical inactivity (aOR: 6.0; 95% CI: 1.2-29.6), office chairs without lumbar supports (aOR: 3.3; 95% CI: 0.1-0.9) and high workplace stress (aOR: 4.4; 95% CI: 1.1-17.5) were identified as significant risk factors for LBP among the respondents. Conclusions: This study has revealed a high burden of LBP among teaching staff of the UoN and undoubtedly mimics the situation in other higher learning institutions in Kenya. Physical inactivity, sitting on chairs without lumbar supports and workplace stress have been identified as modifiable risk factors for LBP among teaching staff. This suggests a need to strengthen advocacy for regular physical activity, team-building activities and investment in office infrastructure to mitigate the effects of LBP within learning institutions.
Highlights
Disorders of the musculoskeletal system (MSDs) constitute the second most common cause of disability worldwide – accounting for 169,624,000 disability-adjusted life years (DALYs) as of 2010 which is a 45.5% increase over 10 years[1,2]
Physical inactivity, sitting on chairs without lumbar supports and workplace stress have been identified as modifiable risk factors for low back pain (LBP) among teaching staff
4.1 Prevalence of LBP The prevalence of LBP among teaching staff of the College of Health Sciences (CHS), University of Nairobi (UoN) was estimated to be 64.0%. This is a higher prevalence than demonstrated by most studies conducted among teachers in which LBP prevalence ranged between 22.3% (Thailand) and 57.5% (Ethiopia)[12,13,14,15]
Summary
Disorders of the musculoskeletal system (MSDs) constitute the second most common cause of disability worldwide – accounting for 169,624,000 disability-adjusted life years (DALYs) as of 2010 which is a 45.5% increase over 10 years[1,2]. In Kenya, to the best of our knowledge, there are no published studies that have investigated risk factors for LBP among teaching staff. The objectives of this study were to estimate the prevalence of LBP among teaching staff of the University of Nairobi (UoN), during the period June 2016 – May 2017, and to identify its socio-demographic and work-related risk factors. Methods: An analytical cross-sectional study design was used to estimate the prevalence and investigate the risk factors for LBP among 136 teaching staff of UoN. Physical inactivity (aOR: 6.0; 95% CI: 1.2–29.6), office chairs without lumbar supports (aOR: 3.3; 95% CI: 0.1–0.9) and high workplace stress (aOR: 4.4; 95% CI: 1.1–17.5) were identified as significant risk factors for LBP among the respondents. Conclusions: This study has revealed a high burden of LBP among teaching staff of the UoN and undoubtedly mimics the situation in Invited Reviewers version 1
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