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Binkley et al5 developed the Lower Extremity Functional Scale (LEFS) as a patient-reported measure to examine the functional status in the presence of lower extremity musculoskeletal problems. The LEFS consists of 20 items, with scores ranging from 0 (extreme difficulty/unable to perform activity) to 4 (no difficulty).
The Lower Extremity Functional Scale (LEFS) is intended to assess functional status in patients with disability of the lower extremity (e.g., hip, thigh, knee, leg, ankle, foot). The score was originally developed in a cohort of 107 patients with lower-extremity musculoskeletal dysfunction.
They found a mean LEFS score of 71, indicating a good result of their treatment. When less than 15% of the individuals have the minimum score, no floor effect is present, and when less than 15% reach the maximum score, there is no ceiling effect (McHorney and Tarlov 1995).
They found a mean LEFS score of 71, indicating a good result of their treatment. When less than 15% of the individuals have the minimum score, no floor effect is present, and when less than 15% reach the maximum score, there is no ceiling effect (McHorney and Tarlov 1995).
The LEFS rating scale categories are: (1) \u201cextreme difficulty or unable to perform,\u201d (2) \u201cquite a bit of difficulty,\u201d (3) \u201cmoderate difficulty,\u201d (4) \u201ca little bit of difficulty,\u201d and (5) \u201cno difficulty.\u201d In addition, the participant could elect \u201cnot applicable\u201d for any item; this response was recorded as missing data ...

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The LEFS rating scale categories are: (1) \u201cextreme difficulty or unable to perform,\u201d (2) \u201cquite a bit of difficulty,\u201d (3) \u201cmoderate difficulty,\u201d (4) \u201ca little bit of difficulty,\u201d and (5) \u201cno difficulty.\u201d In addition, the participant could elect \u201cnot applicable\u201d for any item; this response was recorded as missing data ...
LEFS score = SUM (points for all 20 activities) Interpretation: Minimum score: 0 Maximum score: 80 The lower the score the greater the disability. The Minimal Detectable Change (MDC) is 9 scale points. The Minimal clinically Important Difference (MCID) is 9 scale points.
LEFS score = SUM (points for all 20 activities) Interpretation: Minimum score: 0 Maximum score: 80 The lower the score the greater the disability. The Minimal Detectable Change (MDC) is 9 scale points. The Minimal clinically Important Difference (MCID) is 9 scale points.
They found a mean LEFS score of 71, indicating a good result of their treatment. When less than 15% of the individuals have the minimum score, no floor effect is present, and when less than 15% reach the maximum score, there is no ceiling effect (McHorney and Tarlov 1995).
The UEFS consists of 8 questions, that are scored out of a possible 10 points. The scale is calculated by summing the points from each individual question, with a range of 0 (no disability) to 80 (maximum disability).

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