Validation of patient determined disease steps (PDDS) scale scores in persons with multiple sclerosis

@inproceedings{Learmonth2013ValidationOP,
  title={Validation of patient determined disease steps (PDDS) scale scores in persons with multiple sclerosis},
  author={Yvonne Charlotte Learmonth and Robert W Motl and Brian M. Sandroff and John H. Pula and Diego Cadavid},
  booktitle={BMC neurology},
  year={2013}
}
BACKGROUND The 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… CONTINUE READING
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