2013
DOI: 10.1186/1471-2377-13-37
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Validation of patient determined disease steps (PDDS) scale scores in persons with multiple sclerosis

Abstract: BackgroundThe Patient Determined Disease Steps (PDDS) is a promising patient-reported outcome (PRO) of disability in multiple sclerosis (MS). To date, there is limited evidence regarding the validity of PDDS scores, despite its sound conceptual development and broad inclusion in MS research. This study examined the validity of the PDDS based on (1) the association with Expanded Disability Status Scale (EDSS) scores and (2) the pattern of associations between PDDS and EDSS scores with Functional System (FS) sco… Show more

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Cited by 551 publications
(399 citation statements)
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“…[13][14][15][16][17] Briefly, the PDDS scale consists of 9 steps ranging from 0 (no disability) to 8 (bedridden). The SF-12 consists of 12 questions that can be subdivided into those involving physical or mental health.…”
Section: Outcome Measures and Assessmentsmentioning
confidence: 99%
“…[13][14][15][16][17] Briefly, the PDDS scale consists of 9 steps ranging from 0 (no disability) to 8 (bedridden). The SF-12 consists of 12 questions that can be subdivided into those involving physical or mental health.…”
Section: Outcome Measures and Assessmentsmentioning
confidence: 99%
“…Однією з альтернатив є шкала Patient Determined Disease Steps (PDDS), розроблена в 1995 році Північ-но-Американським дослідницьким комітетом розсія-ного склерозу (NARCOMS -North American Research Committee Multiple Sclerosis) [7][8][9][10]. Шкала PDDS -це заповнена самостійно пацієнтом шкала оцінки власного ступеня неспроможності [7][8][9][10].…”
Section: вступunclassified
“…Шкала PDDS -це заповнена самостійно пацієнтом шкала оцінки власного ступеня неспроможності [7][8][9][10]. PDDS має дев'ять рівнів неспроможності -від 0 (нормальний) до 8 (прикутий до ліжка) -та дає можливість оці-нити легку, помірну та виражену неспроможність.…”
Section: вступunclassified
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“…The total MSWS-12 score is between 0 and 100 and is calculated by first adding the individual item scores, subtracting 12 (the minimum possible score), dividing by 48 (the maximal score), and then multiplying the result by 100. The PDDS is an inexpensive surrogate for the Expanded Disability Status Scale for evaluating disability status and disease progression in persons with MS and has strong validity evidence [19][20]25]. The PDDS consists of a single item for assessing self-reported disability status on an ordinal scale, ranging from 0 (normal) through 8 (bedridden).…”
Section: Walking Impairmentmentioning
confidence: 99%