Division of Internal Medicine, Unnan City Hospital, Unnan-city, Shimane, Japan.
Center for Community-Based Healthcare Research and Education (CoHRE), Shimane University, Matsue-city, Shimane, Japan.
BMC Musculoskelet Disord. 2019 May 10;20(1):207. doi: 10.1186/s12891-019-2580-6.
Low back pain (LBP) is a common complaint in the elderly Japanese population. Although previous studies showed that height loss was associated with LBP, it remains unclear whether LBP is associated with body composition. The objective of the present study was to investigate whether body composition and physical characteristics, including height loss, were associated with LBP.
The present study is retrospectively registered, and the participants were 2212 community-dwelling Japanese people aged over 60 years who participated in the Shimane CoHRE study in 2016. We investigated the presence of LBP, body composition parameters (muscle, fat, body weight, and bone mass), physical characteristics (body height and height loss), chronic diseases, history of fall, smoking, and drinking habits. We examined the relationships of body composition parameters and physical characteristics with point prevalence of LBP using multivariate logistic regression.
The point prevalence of LBP was 43.2% in women and 39.5% in men. Logistic regression models showed that body height and body composition were not significantly associated with LBP; however, height loss was associated significantly with LBP in women and men (OR: 1.14, 95% CI: 1.08-1.20 and OR: 1.13, 95% CI: 1.06-1.21, respectively). Hypertension (OR: 1.32, 9 5% CI: 1.04-1.69) and chronic heart disease (OR: 1.57, 95% CI: 1.01-2.43) in women and history of fall (OR: 1.70, 95% CI: 1.13-2.56) and cerebrovascular disease (OR: 1.88, 95% CI: 1.05-3.34) in men were significantly associated with LBP. However, body composition was not associated with LBP in either gender.
The present study demonstrated that height loss, but not body composition, was related to LBP in community-dwelling elderly people. To elucidate the cause of LBP, it is important to consider the relationship with height loss.
下腰痛（LBP）是日本老年人群中的常见主诉。尽管先前的研究表明身高损失与 LBP 相关，但 LBP 是否与身体成分相关仍不清楚。本研究的目的是调查身体成分和身体特征（包括身高损失）是否与 LBP 相关。
本研究为回顾性注册研究，参与者为 2016 年参加岛根县 CoHRE 研究的 2212 名 60 岁以上的社区居住的日本人。我们调查了 LBP 的存在、身体成分参数（肌肉、脂肪、体重和骨量）、身体特征（身高和身高损失）、慢性疾病、跌倒史、吸烟和饮酒习惯。我们使用多变量逻辑回归检查身体成分参数和身体特征与 LBP 点患病率的关系。
女性 LBP 的点患病率为 43.2%，男性为 39.5%。逻辑回归模型显示，身高和身体成分与 LBP 无显著相关性；然而，身高损失与女性和男性的 LBP 显著相关（OR：1.14，95%CI：1.08-1.20 和 OR：1.13，95%CI：1.06-1.21）。女性中高血压（OR：1.32，95%CI：1.04-1.69）和慢性心脏病（OR：1.57，95%CI：1.01-2.43）以及男性中跌倒史（OR：1.70，95%CI：1.13-2.56）和脑血管病（OR：1.88，95%CI：1.05-3.34）与 LBP 显著相关。然而，身体成分与两性的 LBP 均无相关性。
本研究表明，身高损失而非身体成分与社区居住的老年人的 LBP 相关。为了阐明 LBP 的原因，考虑与身高损失的关系很重要。
