Oe Shin, Togawa Daisuke, Yoshida Go, Hasegawa Tomohiko, Yamato Yu, Yasuda Tatsuya, Banno Tomohiro, Arima Hideyuki, Mihara Yuki, Ushirozako Hiroki, Matsuyama Yukihiro
Department of Orthopedic Surgery and Division of Geriatric Musculoskeletal Health, Hamamatsu University School of Medicine, 1-20-1 Handayama Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
Department of Orthopedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Eur Spine J. 2018 Jun;27(6):1423-1431. doi: 10.1007/s00586-018-5555-7. Epub 2018 Mar 22.
The Neck Disability Index (NDI) is used to evaluate patients with cervical spine disease. However, few reports have defined the cut-off values of the NDI. The purpose of this study was to identify the cut-off values of and factors with a negative impact on NDI.
A total of 487 volunteers were divided into three groups based on disability: none, mild, and disabled. The cut-off values of the NDI were determined using receiver-operating characteristic curves. After these groups were divided based on sex and age adjustment was performed, the factors with a negative impact on NDI were investigated using multiple logistic regression analysis.
Groups none, mild, and disabled included 207, 186, and 94 volunteers, respectively. The cut-off values of the NDI in each group were 0-5, 6-17, and ≥ 18%, respectively. After adjusting for age, groups none, mild, and disabled had 65, 56, and 23 males, respectively, and 92, 103, and 56 females, respectively. In multiple logistic regression analysis, the factors with a negative impact on NDI in males were manual work (odds ratio [OR] 1.924), higher T1 slope minus cervical lordosis (OR 1.043), and higher C2-7 sagittal vertical axis (OR 1.029, P < 0.05). Among females, the factors were hand-grip strength (OR 0.936), body fat percentage (OR 0.942), and sporting activity (OR 0.456, P < 0.05).
Deterioration in NDI was associated with cervical spinal malalignment and manual labor in males and lack of physical activity and sarcopenia in females. These slides can be retrieved under Electronic Supplementary Material.
颈部功能障碍指数（NDI）用于评估颈椎病患者。然而，很少有报告确定NDI的临界值。本研究的目的是确定NDI的临界值以及对NDI有负面影响的因素。
487名志愿者根据残疾程度分为三组：无残疾、轻度残疾和重度残疾。使用受试者工作特征曲线确定NDI的临界值。在根据性别和年龄进行分组并进行调整后，使用多元逻辑回归分析调查对NDI有负面影响的因素。
无残疾、轻度残疾和重度残疾组分别包括207名、186名和94名志愿者。每组NDI的临界值分别为0 - 5、6 - 17和≥18%。在调整年龄后，无残疾、轻度残疾和重度残疾组男性分别有65名、56名和23名，女性分别有92名、103名和56名。在多元逻辑回归分析中，对男性NDI有负面影响的因素是体力劳动（比值比[OR]1.924）、较高的T1斜率减去颈椎前凸（OR 1.043）和较高的C2 - 7矢状垂直轴（OR 1.029，P < 0.05）。在女性中，这些因素是握力（OR 0.936）、体脂百分比（OR 0.942）和体育活动（OR 0.456，P < 0.05）。
NDI的恶化与男性颈椎排列不齐和体力劳动以及女性缺乏体育活动和肌肉减少症有关。这些幻灯片可在电子补充材料中获取。
