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Qual Life Res. 2017 Sep;26(9):2563-2572. doi: 10.1007/s11136-017-1598-1. Epub 2017 May 24.

Linking existing instruments to develop a continuum of care measure: accuracy comparison using function-related group classification.

Author information

1
Division of Rehabilitation Sciences, School of Health Professions, University of Texas Medical Branch, Office 4.430, 301 University Boulevard, Galveston, TX, 77555-1137, USA. chili@utmb.edu.
2
Department of Occupational Therapy, College of Public Health and Health Professions, University of Florida, Gainesville, FL, 32610-0164, USA.
3
Department of Veterans Affairs, Center of Innovation on Disability and Rehabilitation Research (CINDRR), 151-B NF/SG VA Medical Center, 1601 SW Archer Rd., Gainesville, FL, 32608, USA.
4
Department of Healthcare Leadership and Management, College of Health Professions, Medical University of South Carolina, Rm 410, 151-B Rutledge Ave, Charleston, SC, 29425, USA.
5
Department of Health Sciences and Research, College of Health Professions, Medical University of South Carolina, 77 President St., MSC 700, Charleston, SC, 29425, USA.
6
Division of Rehabilitation Sciences, School of Health Professions, University of Texas Medical Branch, Office 4.430, 301 University Boulevard, Galveston, TX, 77555-1137, USA.
7
Division of Occupational Therapy, College of Health Professions, Medical University of South Carolina, Rm 330, 151-B Rutledge Avenue, MSC 962, Charleston, SC, 29425-9620, USA.

Abstract

PURPOSES:

To compare measurement accuracy of test forms with varied number of items (13, 8, and 4 items) generated from the self-care physical function item bank composed of Functional Independence Measure (FIM™) and the Minimum Data Set (MDS).

METHODS:

Retrospective data analysis of 2499 Veterans who completed both FIM and MDS within 6 days. We compared measurement accuracy between the converted FIM (FIMc) motor score generated from the MDS and the original FIM (FIMa) motor score (13 items) at: (a) individual-level using point differences, and (b) group-level using function-related group (FRG).

RESULTS:

The differences of mean FIMa and FIMc scores were between 0.05 and 1.07 points for all test forms. Over 81% of FIMc from MDS_13 were within 15 points of the FIMa. 81-90% of FRGs generated by the FIM short forms was identical to those generated by the FIMa for stroke, lower limb amputation, knee and hip replacement; and 59.9-90.5% by all MDS test forms. All MDS test forms had above 74% agreement with same or adjacent FMGs (ICC 0.65-0.91).

CONCLUSIONS:

The accuracy is dependent on the comparison level (i.e., individual or group), length of the test and which FRG is used. Our results partially support using existing instruments-without decreasing the number of the items-to generate a continuum of care measurement.

KEYWORDS:

Activities of daily living; Classification; Continuity of patient care; Outcome assessment (health care); Veterans

PMID:
28540495
DOI:
10.1007/s11136-017-1598-1
[Indexed for MEDLINE]

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