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The Kurtzke Expanded Disability Status Scale (EDSS) is a method of quantifying disability in multiple sclerosis. [ 1 ] [ 2 ] The scale has been developed by John F. Kurtzke . [ 1 ] The EDSS is based on a neurological examination by a clinician.
John Francis Kurtzke (September 14, 1926 – December 1, 2015) was a neuroepidemiologist and Professor of Neurology at Georgetown University who is best known for his creation of the Expanded Disability Status Scale and for his research on multiple sclerosis (MS). [1]
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The assessor requires little training for accurate completion and approximately fifteen minutes to score. The patient can perform the assessment retrospectively or it can be done using medical history. Secondly, the scale allows effective tracking of progress. [4] The scale is strongest and most sensitive in scaling general behavioral disability.
The modified UPDRS retains the four-scale structure with a reorganization of the various subscales. Score ranges from 0 to 260, [7] [8] with 0 indicating no disability and 260 indicating total disability. The scales are: Part I: Nonmotor experiences of daily living: 13 items. Score range: 0–52, [8] 10 and below is mild, 22 and above is severe ...
A score of 0 on a question would indicate no function while a score of 4 would indicate full function. [4] [5] This scale has been useful for doctors in diagnosing patients, measuring disease progression and also for researchers when selecting patients for a study and measuring the potential effects of a clinical trial. [4] [6]
The SSD-12 is composed of 12 items. Each of the three psychological sub-criteria of DSM-5 somatic symptom disorder (cognitive, affective, behavioral) [2] is measured by four items with all item scores ranging between 0 and 4 (0 = never, 1 = rarely, 2 = sometimes, 3 = often, 4 = very often).
The FIM's assessment of degree of disability depends on the patient's score in 18 categories, focusing on motor and cognitive function. Each category or item is rated on a 7-point scale (1 = <25% independence; total assistance required, 7 = 100% independence).