| 제목 |
Relationship between obesity and lumbar spine degeneration |
| 소속 |
Seoul National University Boramae Medical Center, Seoul, Republic of Korea, Department of Rehabilitation Medicine1, Asan Medical Center, University of Ulsan College of Medicine, Department of Rehabilitation Medicine2 |
| 저자 |
Sang Yoon Lee1, Won Kim2*†, Shi-Uk Lee1, Kyoung Hyo Choi2 |
Background: Although several studies have shown that obesity affects low back pain (LBP), the relationship between degenerative lumbar spine (LSD) and obesity has not been fully investigated. This study evaluated whether obesity is independently associated with LSD in the general population.
Methods: This cross-sectional study used public data from the Fifth Korean National Health and Nutrition Examination Survey (2010-2012). Subjects aged ≥50 years who had completed surveys were included (3,668 men and 4,966 women). Obesity was classified by body mass index and LSD was assessed by radiographs of the lumbar spine. The independent associations of obesity to LSD or LBP were determined using odds ratios (OR) adjusted by two regression models.
Results: The prevalence of obesity was more frequent in women than in men (38.27% vs. 33.97%, P < 0.001). Compared to normal-weight women, the risk of LSD was increased in overweight and obese women after adjustment (OR 1.227, 95% confidence interval [CI] 1.019–1.477 and OR 1.217, 95% CI 1.024–1.446, respectively). When obesity was subdivided, the obese II group showed higher odds for LSD in women (OR 1.797, 95% CI 1.287–2.510). However, obesity was not correlated with LSD in men. There were no significant associations between obesity and LBP in either men or women.
Conclusions: Compared to normal-weight women, the risk of LSD was increased in overweight and obese women, especially, those in the obese II subgroup. These findings suggest that maintaining normal body weight may be one of the factors preventing LSD.
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Table 1. Subject characteristics
Table 2. Odds ratios for LSD according to normal weight, overweight, obese I, and obese II categories
Table 3. Odds ratios for LBP according to normal weight, overweight, obese I, and obese II categories
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