Reliability and Validity of the Korean Late-Life Function and Disability Instrument
Abstract
:1. Background
2. Methods
2.1. Subjects
2.2. Assessment Tool: Late-Life Function and Disability Instrument (LLFDI)
2.3. Procedure
2.4. Stage 1: Translation and Back-Translation of the LLFDI
2.5. Stage 2: Cultural Adaptation
2.6. Stage 3: Reliability and Validity Analysis
2.7. Statistical Analysis
3. Results
3.1. Cultural Adaptation
3.2. Reliability Analysis
3.2.1. Test–Retest Reliability
3.2.2. Internal Consistency
3.3. Validity Analysis
Construct Validity
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Categories | M(SD) | |
---|---|---|
Disability component | Social role | 19.18(6.681) |
Personal role | 21.36(4.685) | |
Instrumental role | 35.36(11.933) | |
Management role | 11.58(3.970) | |
Function component | Upper extremity | 31.56(3.913) |
Basic lower extremity | 57.04(10.785) | |
Advanced lower extremity | 35.44(13.135) |
Test–Retest, ICC [95% CI] | ||||
---|---|---|---|---|
Domain | Original | Swedish | Brazilian | Korean |
Disability component | ||||
Frequency | ||||
Social role | 0.753 | 0.82 | 0.81 [0.52, 0.93] | 0.948 [0.816, 0.987] |
Personal role | 0.633 | 0.53 [0.00, 0.82] | 0.795 [0.397, 0.944] | |
Limitation | ||||
Instrumental role | 0.833 | 0.91 | 0.59 [0.12, 0.85] | 0.904 [0.680, 0.975] |
Management role | 0.435 | 0.27 [0.00, 0.70] | 0.964 [0.871, 0.991] | |
Function component | ||||
Upper extremity | 0.912 | 0.87 | 0.95 [0.86, 0.98] | 0.565 [-0.025, 0.869] |
Basic lower extremity | 0.976 | 0.89 | 0.93 [0.81, 0.98] | 0.781 [0.366, 0.940] |
Advanced lower extremity | 0.966 | 0.91 | 0.78 [0.44, 0.93] | 0.971 [0.895, 0.993] |
Internal Consistency, Cronbach’s α | ||||
---|---|---|---|---|
Domain | Original | Swedish | Brazilian | Korean |
Disability component | ||||
Frequency | ||||
Social role | 0.80 | 0.90 | 0.807 | 0.862 |
Personal role | 0.73 | 0.601 | 0.725 | |
Limitation | ||||
Instrumental role | 0.92 | 0.95 | 0.856 | 0.914 |
Management role | 0.63 | 0.611 | 0.771 | |
Function component | ||||
Upper extremity | 0.912 | 0.87 | 0.819 | 0.775 |
Basic lower extremity | 0.976 | 0.89 | 0.889 | 0.929 |
Advanced lower extremity | 0.966 | 0.91 | 0.914 | 0.956 |
Disability Component | ||
---|---|---|
Domain | Item No. | Factor Loading |
Social role | D1F | 0.440 |
D2F | 0.533 | |
D3F | 0.489 | |
D5F | 0.901 | |
D6F | 0.785 | |
D9F | 0.780 | |
D11F | 0.898 | |
D12F | 0.620 | |
D14F | 0.326 | |
Personal role | D4F | 0.384 |
D7F | 0.891 | |
D8F | 0.152 | |
D10F | 0.429 | |
D13F | 0.506 | |
D15F | 0.690 | |
D16F | 0.460 | |
Instrumental role | D2L | 0.797 |
D3L | 0.624 | |
D4L | 0.519 | |
D5L | 0.905 | |
D6L | 0.875 | |
D9L | 0.771 | |
D10L | 0.714 | |
D12L | 0.651 | |
D13L | 0.422 | |
D14L | 0.469 | |
D15L | 0.770 | |
D16L | 0.400 | |
Management role | D1L | 0.466 |
D7L | 0.936 | |
D8L | 0.327 | |
D11L | 0.904 |
Function Component | ||
---|---|---|
Domain | Item No. | Factor Loading |
Upper extremity | F1 | 0.543 |
F3 | 0.313 | |
F5 | 0.769 | |
F6 | 0.575 | |
F13 | 0.469 | |
F16 | 0.619 | |
F17 | 0.798 | |
Basic lower extremity | F2 | 0.716 |
F10 | 0.445 | |
F11 | 0.762 | |
F12 | 0.383 | |
F14 | 0.812 | |
F15 | 0.626 | |
F18 | 0.801 | |
F21 | 0.703 | |
F22 | 0.866 | |
F23 | 0.610 | |
F25 | 0.698 | |
F26 | 0.808 | |
F28 | 0.790 | |
F31 | 0.835 | |
Advanced lower extremity | F4 | 0.854 |
F7 | 0.785 | |
F8 | 0.814 | |
F9 | 0.931 | |
F19 | 0.858 | |
F20 | 0.964 | |
F24 | 0.852 | |
F27 | 0.637 | |
F29 | 0.772 | |
F30 | 0.827 | |
F32 | 0.730 |
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Park, D.S.; Park, H.Y. Reliability and Validity of the Korean Late-Life Function and Disability Instrument. Healthcare 2021, 9, 1200. https://doi.org/10.3390/healthcare9091200
Park DS, Park HY. Reliability and Validity of the Korean Late-Life Function and Disability Instrument. Healthcare. 2021; 9(9):1200. https://doi.org/10.3390/healthcare9091200
Chicago/Turabian StylePark, Da Sol, and Hae Yean Park. 2021. "Reliability and Validity of the Korean Late-Life Function and Disability Instrument" Healthcare 9, no. 9: 1200. https://doi.org/10.3390/healthcare9091200