Sukhvinder Kalsi-Ryan1,2, Colin Chan3, Mary Verrier1,2,4, Armin Curt5, Michael Fehlings6,7, Marc Bolliger5, Inge-Marie Velstra8. 1. KITE, Toronto Rehabilitation Institute-UHN , Toronto , Canada. 2. Departtment of Physical Therapy, University of Toronto , Toronto , Canada. 3. Biomedical Engineering, University of Western Ontario , London , Canada. 4. Rehabilitation Sciences Institute, University of Toronto , Toronto , Canada. 5. Spinal Cord Injury Centre, University Hospital Balgrist , Zurich , Switzerland. 6. Department of Surgery, University of Toronto , Toronto , Canada. 7. Krembil Neuroscience Centre, University Health Network , Toronto , Canada. 8. Clinical Trial Unit, Swiss Paraplegic Center , Nottwil , Switzerland.
Abstract
Context: GRASSP Version 1 (GV1) was developed in 2010, is an upper extremity measure specifically designed to assess recovery after traumatic tetraplegia. A second version was developed to reduce length of the test and refine instructions/standardization. The purpose of this post hoc analysis was to calculate psychometric properties of GRASSP Version 2 (GV2). Design/Setting: A post-hoc analysis of datasets for the GRASSP cross-sectional (n = 72 chronic,) and longitudinal (n = 127 acute) studies was conducted. Reliability, validity and MDD were calculated from the chronic sample and responsiveness was re-calculated from the longitudinal sample. Both studies were observational. Participants: A chronic sample (n = 72) and acute longitudinal sample (n = 127) of individuals with traumatic tetraplegia (AIS A to D, NLI C2 to C8) were studied. Outcome Measures: GV1, the Spinal Cord Independence Measure III (SCIM), International Standards of Neurological Classification of Spinal Cord Injury (ISNCSCI) were administered in both studies at all centers and the Capabilities of the Upper Extremity Questionnaire (CUE-Q) was administered in North American sites only. GRASSP-Palmar Sensation, GRASSP-Prehension Performance subtest items included in GV2 were re-analyzed for reliability; validity, MDD and responsiveness. Results: Inter-rater and test-retest reliability for all subtests ranged between 0.849-0.971 and 0.950-0.971 respectively. Concurrent validity between domains of GV2 were positively and moderately (0.530-0.830, P < 0.0001) correlated to SCIM, SCIM self-care subscore (SS) and CUE-Q. MDD values were 4 and 3 points for sensation and prehension performance (single side). Responsiveness values were .84-.88 for GR-Sens and .93-1.22 for GR-PP respectively. Conclusions: GV2 retains excellent psychometric properties as does GV1.
Context: GRASSP Version 1 (GV1) was developed in 2010, is an upper extremity measure specifically designed to assess recovery after traumatic tetraplegia. A second version was developed to reduce length of the test and refine instructions/standardization. The purpose of this post hoc analysis was to calculate psychometric properties of GRASSP Version 2 (GV2). Design/Setting: A post-hoc analysis of datasets for the GRASSP cross-sectional (n = 72 chronic,) and longitudinal (n = 127 acute) studies was conducted. Reliability, validity and MDD were calculated from the chronic sample and responsiveness was re-calculated from the longitudinal sample. Both studies were observational. Participants: A chronic sample (n = 72) and acute longitudinal sample (n = 127) of individuals with traumatic tetraplegia (AIS A to D, NLI C2 to C8) were studied. Outcome Measures: GV1, the Spinal Cord Independence Measure III (SCIM), International Standards of Neurological Classification of Spinal Cord Injury (ISNCSCI) were administered in both studies at all centers and the Capabilities of the Upper Extremity Questionnaire (CUE-Q) was administered in North American sites only. GRASSP-Palmar Sensation, GRASSP-Prehension Performance subtest items included in GV2 were re-analyzed for reliability; validity, MDD and responsiveness. Results: Inter-rater and test-retest reliability for all subtests ranged between 0.849-0.971 and 0.950-0.971 respectively. Concurrent validity between domains of GV2 were positively and moderately (0.530-0.830, P < 0.0001) correlated to SCIM, SCIM self-care subscore (SS) and CUE-Q. MDD values were 4 and 3 points for sensation and prehension performance (single side). Responsiveness values were .84-.88 for GR-Sens and .93-1.22 for GR-PP respectively. Conclusions: GV2 retains excellent psychometric properties as does GV1.
Authors: Sukhvinder Kalsi-Ryan; Dorcas Beaton; Henry Ahn; Heather Askes; Brian Drew; Armin Curt; Milos R Popovic; Justin Wang; Mary C Verrier; Michael G Fehlings Journal: J Neurotrauma Date: 2015-12-17 Impact factor: 5.269
Authors: Sukhvinder Kalsi-Ryan; Dorcas Beaton; Armin Curt; Susan Duff; Milos R Popovic; Claudia Rudhe; Michael G Fehlings; Mary C Verrier Journal: J Neurotrauma Date: 2011-08-12 Impact factor: 5.269
Authors: John D Steeves; Daniel P Lammertse; John L K Kramer; Naomi Kleitman; Sukhvinder Kalsi-Ryan; Linda Jones; Armin Curt; Andrew R Blight; Kim D Anderson Journal: Top Spinal Cord Inj Rehabil Date: 2012-01-31