Lanzino Desiree, Sander Elizabeth, Mansch Bethany, Jones Ashley, Gill Megan, Hollman John
Mayo School of Health Sciences, College of Medicine, Mayo Clinic, Rochester, Minnesota.
Minneapolis Veteran's Administration Health Care System, Physical Medicine and Rehabilitation, Minneapolis, Minnesota.
Top Spinal Cord Inj Rehabil. 2016 Summer;22(3):173-182. doi: 10.1310/sci2203-173.
To examine the Life Space Assessment (LSA) in persons with spinal cord injury (SCI), exploring its psychometric properties, differences between persons with cervical versus thoracolumbar injuries, and cutoff score differentiating a restricted from an unrestricted life space. : We conducted a test-retest reliability study in a community setting involving 50 persons with SCI (25 injured above C7, 25 injured below T1). Data were collected in 2 phone interviews approximately 9 days apart using the LSA. Mean LSA scores were 66 ± 25 ( = 50): 62 ± 23 for the cervical group, and 70 ± 25 for the thoracolumbar group. Scores were not significantly different between phone interviews [(49) = 0.379, = .706] or between groups [(48) = -1.214, = .231]. Test-retest reliability intraclass correlation coefficient (ICC) was 0.876 (95% CI, 0.792-0.928). Spearman's rho correlations between the LSA and Reintegration to Normal Living Index total and subscores ranged from .509 to .538 ( < .001). LSA scores were normally distributed. The minimum detectable change was approximately 23 points. A cutoff score of 78.5 (sensitivity 76.9%, specificity 81.1%) differentiated between persons with a restricted from an unrestricted life space if equipment and personal assistance were not needed for mobility. If equipment was needed, the cutoff score was found to be 49 (sensitivity of 90%, specificity of 90%). The LSA is a reliable and valid measure of life space in persons with SCI and can be used to identify persons with a restricted life space who may be at increased risk of mobility disability.
为了研究脊髓损伤（SCI）患者的生活空间评估（LSA），探索其心理测量特性、颈髓损伤与胸腰段损伤患者之间的差异，以及区分受限与不受限生活空间的临界值。我们在社区环境中对50例SCI患者（25例C7以上损伤，25例T1以下损伤）进行了重测信度研究。使用LSA通过两次间隔约9天的电话访谈收集数据。LSA平均得分为66±25（n = 50）：颈髓损伤组为62±23，胸腰段损伤组为70±25。电话访谈之间（t(49)=0.379，p = 0.706）或组间（t(48)= -1.214，p = 0.231）得分无显著差异。重测信度组内相关系数（ICC）为0.876（95%CI，0.792 - 0.928）。LSA与重返正常生活指数总分及子分数之间的Spearman等级相关系数范围为0.509至0.538（p < 0.001）。LSA得分呈正态分布。最小可检测变化约为23分。如果行动不需要设备和个人协助，临界值78.5（灵敏度76.9%，特异度81.1%）可区分生活空间受限与不受限的患者。如果需要设备，临界值为49（灵敏度90%，特异度90%）。LSA是一种可靠且有效的脊髓损伤患者生活空间测量方法，可用于识别生活空间受限且可能有行动障碍风险增加的患者。
