Stineman M G, Hamilton B B, Granger C V, Goin J E, Escarce J J, Williams S V
Department of Rehabilitation Medicine, University of Pennsylvania, Philadelphia 19104-2676.
Arch Phys Med Rehabil. 1994 Dec;75(12):1277-83.
The Functional Independence Measure-Function Related Groups (FIM-FRGs) were developed to classify medical rehabilitation inpatients into homogeneous groups based on length of stay (LOS). Patients are first grouped into clinically relevant rehabilitation impairment categories, then by functional status, as expressed by the FIM, and in certain cases by patient age. The statistical approach used to form the final groupings was a recursive partitioning algorithm applied to the FIM scores and patient age within impairment category. This analysis compares four FIM-FRG classification schemes developed from four scale sets that combine FIM items differently: (1) use of the 18 FIM items as separate variables, (2) the combination of FIM items into six clinical subscales, (3) the combination of the six clinical subscales into motor and cognitive subscales, and (4) the combination of all FIM items into a single scale. The FIM-FRG schemes explain similar amounts of variance in the logarithm of LOS and contain approximately equal numbers of FRGs. The motor and cognitive subscale scheme is recommended for use in payment, however, this scheme and the other schemes have additional uses. Each FRG scheme provides different insight into the clinical relationship between disability and LOS.
功能独立性测量-功能相关组（FIM-FRGs）旨在根据住院时间（LOS）将医学康复住院患者分类为同质组。患者首先被分组到临床相关的康复损伤类别中，然后根据功能状态进行分组，功能状态由FIM表示，在某些情况下还根据患者年龄进行分组。用于形成最终分组的统计方法是一种递归划分算法，应用于损伤类别内的FIM评分和患者年龄。本分析比较了从四个量表集开发的四种FIM-FRG分类方案，这些量表集以不同方式组合FIM项目：（1）将18个FIM项目用作单独变量，（2）将FIM项目组合成六个临床子量表，（3）将六个临床子量表组合成运动和认知子量表，以及（4）将所有FIM项目组合成一个单一量表。FIM-FRG方案在LOS对数中解释的方差量相似，并且包含的FRG数量大致相等。运动和认知子量表方案推荐用于支付，但该方案和其他方案还有其他用途。每个FRG方案都提供了关于残疾与LOS之间临床关系的不同见解。
