Nicolas Legris1, Hervé Devilliers2,3, Anaïs Daumas1, Didier Carnet4, Jean-Pierre Charpy4, Philip Bastable2, Maurice Giroud1, Yannick Béjot1. 1. Department of Neurology, Dijon Stroke Registry, University Hospital and Medical School of Dijon, University of Burgundy, France. 2. Department of Internal Medicine and Systemic Disease, University Hospital and Medical School of Dijon, University of Burgundy, France. 3. Clinical Investigation Center INSERM CIC 1423, University Hospital and Medical School of Dijon, University of Burgundy, France. 4. Department of Medical English, Medical School of Dijon, University of Burgundy, France.
Abstract
OBJECTIVE: To adapt the SS-QoL into French and test its psychometric properties. METHODS: Seventy-seven patients from a population-based registry were enrolled 3 months after their stroke. SS-QoL, NIHSS score, Barthel index, HAD, FSS, SF-36 scales, and MMSE were administered at enrolment. SS-QoL was re-administered at 15 days and 2 months. Internal consistency was assessed by Cronbach's α coefficients, factorial validity by an exploratory factor analysis and external validity by Mann-Whitney test and Spearman's correlations (ρ), comparing SS-QoL scores with those obtained from established scales. Reliability was assessed by intra-class correlation coefficients (ICC) and responsiveness by standardized effect sizes (ES). RESULTS: Test-retest and inter-observer reliabilities were excellent (ICC> 0.88). Internal consistency was acceptable (α= 0.65-0.91), except for the Personality domain (α= 0.58). Factor analysis individualized eight homogenous axes. SS-QoL scores were different between groups opposed by their modified Rankin score at enrolment or their overall quality of life compared with pre-stroke status (p < 0.001). Ten of the twelve domains correlated moderately (ρ> 0.35) to strongly (ρ> 0.5) with established measures. Nine domains were mildly to moderately responsive to change (ES> 0.3). CONCLUSION: The French version of the SS-QoL is a valid, reliable and moderately responsive instrument.
OBJECTIVE: To adapt the SS-QoL into French and test its psychometric properties. METHODS: Seventy-seven patients from a population-based registry were enrolled 3 months after their stroke. SS-QoL, NIHSS score, Barthel index, HAD, FSS, SF-36 scales, and MMSE were administered at enrolment. SS-QoL was re-administered at 15 days and 2 months. Internal consistency was assessed by Cronbach's α coefficients, factorial validity by an exploratory factor analysis and external validity by Mann-Whitney test and Spearman's correlations (ρ), comparing SS-QoL scores with those obtained from established scales. Reliability was assessed by intra-class correlation coefficients (ICC) and responsiveness by standardized effect sizes (ES). RESULTS: Test-retest and inter-observer reliabilities were excellent (ICC> 0.88). Internal consistency was acceptable (α= 0.65-0.91), except for the Personality domain (α= 0.58). Factor analysis individualized eight homogenous axes. SS-QoL scores were different between groups opposed by their modified Rankin score at enrolment or their overall quality of life compared with pre-stroke status (p < 0.001). Ten of the twelve domains correlated moderately (ρ> 0.35) to strongly (ρ> 0.5) with established measures. Nine domains were mildly to moderately responsive to change (ES> 0.3). CONCLUSION: The French version of the SS-QoL is a valid, reliable and moderately responsive instrument.
Entities:
Keywords:
Stroke; outcome; quality of life; scale; validation