Annals of Occupational and Environmental Medicine

Original Article

Relationship between obstructive sleep apnea risk and low back pain among shift workers in a tire manufacturing factory: Sunjin Jung, Seunghyeon Cho, Suwhan Kim, Kyung Wook Kang, JiHwan Kim, Won-Ju Park; Ann Occup Environ Med 2026;e15. Published online May 12, 2026; DOI: https://doi.org/10.35371/aoem.2026.38.e15 [Accepted]

Abstract PDF: Background
Low back pain (LBP) is highly prevalent among industrial workers, and obstructive sleep apnea (OSA) has been increasingly recognized as a factor influencing pain modulation. This study evaluated the association between OSA risk, assessed by the STOP-Bang questionnaire, and LBP among shift workers in a tire manufacturing factory.
Methods
A total of 976 male shift workers from a tire manufacturing factory were analyzed. OSA risk was assessed using the STOP-Bang questionnaire and classified as low, moderate, or high. LBP and musculoskeletal pain were defined as self-reported symptoms occurring within the preceding 6 months. Multivariable logistic regression analyses were performed to estimate odds ratios (ORs) and 95% confidence intervals (CIs).
Results
Compared with workers at low OSA risk, those at moderate and high risk had significantly higher odds of LBP (OR: 1.50; 95% CI: 1.02–2.20; p = 0.038; and OR: 1.75; 95% CI: 1.20–2.55; p = 0.004, respectively). Similarly, moderate and high OSA risk were independently associated with increased odds of musculoskeletal pain (OR: 1.86; 95% CI: 1.26–2.73; p = 0.002; and OR: 1.84; 95% CI: 1.26–2.68; p = 0.002, respectively).
Conclusions
Among male shift workers, elevated OSA risk is independently associated with a higher prevalence of LBP and musculoskeletal pain. Systematic workplace screening for OSA risk using the STOP-Bang questionnaire may support occupational health assessments by identifying shift workers with elevated OSA risk who are more likely to report pain-related morbidity.

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