Biostatistics & Epidemiology Data Analytics Center, Boston University School of Public Health, Boston, MA.
Rehabilitation Sciences, MGH Institute of Health Professions, Boston, MA.
Arch Phys Med Rehabil. 2022 Apr;103(4):688-695. doi: 10.1016/j.apmr.2021.06.023. Epub 2021 Jul 31.
To estimate Spinal Cord Injury Functional Index Assistive Technology (SCI-FI/AT) scores from FIM motor items.
Secondary data analysis.
Fourteen Spinal Cord Injury Model Systems (SCIMS) programs.
Persons with traumatic spinal cord injury (SCI) discharged from inpatient rehabilitation at 14 SCIMS programs (N=1237).
Not applicable.
FIM motor items were matched to SCI-FI/AT domains and summary scores for each measure were developed. The kernel-based method was employed to develop a concordance table to estimate SCI-FI/AT domain summary scores from content-matched FIM motor item summary scores. We conducted analyses to compare agreement between actual SCI-FI/AT summary scores (actual SCI-FI/AT_S) and estimated SCI-FI/AT summary scores (est-SCI-FI/AT_S) for the total sample and for participants with different SCI injury categories.
Nine FIM items matched SCI-FI/AT basic mobility and self-care domain content. Pearson correlations for actual and est-SCI-FI/AT_S scores (0.79) were adequate for using concordance linking methods. Intraclass correlation coefficient values (0.79; 95% confidence interval, 0.77-0.81) indicated moderate reliability. t tests revealed no significant differences between actual and est-SCI-FI/AT_S scores in the total sample. For almost 60% of the sample, actual and est-SCI-FI/AT_S score differences were <5 points (half of a SD). Greater differences between actual and est-SCI-FI/AT_S scores were noted for persons with tetraplegia American Spinal Injury Association Impairment Scales (AISs) A, B, and C.
Despite differences between the FIM and SCI-FI/AT assessments, we developed a concordance table to estimate self-care and basic mobility SCI-FI/AT scores from content-matched FIM motor item scores. This concordance table allows researchers to merge FIM data with SCI-FI/AT data to analyze SCI functional outcomes at the group level. However, owing to greater differences between actual and estimated scores, the concordance table should be used with caution to interpret scores for those with cervical-level injuries AISs A, B, C.
从 FIM 运动项目中估算脊髓损伤功能指数辅助技术（SCI-FI/AT）评分。
二次数据分析。
14 个脊髓损伤模型系统（SCIMS）计划。
14 个 SCIMS 计划住院康复出院的创伤性脊髓损伤（SCI）患者（N=1237）。
不适用。
将 FIM 运动项目与 SCI-FI/AT 领域相匹配，并为每个措施制定总结分数。采用基于核的方法制定一致性表格，以从内容匹配的 FIM 运动项目总结分数估算 SCI-FI/AT 领域总结分数。我们进行了分析，以比较总样本和不同 SCI 损伤类别的参与者的实际 SCI-FI/AT 总结分数（实际 SCI-FI/AT_S）和估计的 SCI-FI/AT 总结分数（est-SCI-FI/AT_S）之间的一致性。
9 个 FIM 项目与 SCI-FI/AT 基本活动能力和自理领域的内容相匹配。实际和 est-SCI-FI/AT_S 分数的 Pearson 相关性（0.79）足以使用一致性链接方法。内部一致性系数值（0.79；95%置信区间，0.77-0.81）表明中等可靠性。t 检验表明，总样本中实际和 est-SCI-FI/AT_S 分数之间没有显著差异。对于近 60%的样本，实际和 est-SCI-FI/AT_S 分数差异<5 分（标准差的一半）。对于四肢瘫痪的美国脊髓损伤协会损伤量表（AIS）A、B 和 C 患者，实际和 est-SCI-FI/AT_S 分数之间的差异更大。
尽管 FIM 和 SCI-FI/AT 评估之间存在差异，但我们从内容匹配的 FIM 运动项目分数开发了一个一致性表格来估算自理和基本活动能力 SCI-FI/AT 分数。该一致性表格允许研究人员将 FIM 数据与 SCI-FI/AT 数据合并，以分析群体水平的 SCI 功能结果。然而，由于实际分数和估计分数之间的差异较大，因此在解释颈椎损伤 AISs A、B、C 的分数时应谨慎使用该一致性表格。
