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Cruz-Cruz C.,Metropolitan Autonomous University | Cruz-Cruz C.,Polytechnical National Institute IPN | Martinez-Nunez J.M.,Metropolitan Autonomous University | Perez M.E.,Temple University | And 3 more authors.
Value in Health Regional Issues | Year: 2013

Objectives: The prevalence of stroke survivors with incomplete recovery in society has been estimated at 460/100,000 people, and one third of them require help in at least one daily activity. Two thirds of all deaths related to stroke in the world occur in low- and middle-income countries. The objective of the present work was to assess the reliability and validity of the previously translated Spanish Stroke-Specific Quality-of-Life (SSQOL) version 2.0 scales in Mexican stroke survivors. Methods: An observational and cross-sectional pilot study was conducted. Thirty-one patients who suffered stroke up to 1 year prior to the present study were included. Patients were interviewed twice in a 7-day period; other indexes and scales were applied. The reliability was assessed by using Cronbach's alpha (internal consistency) and test-retest by using Spearman's rho scores; the acceptability was evaluated by the floor and ceiling effects. Results: Ceiling and floor effects were observed for fewer than 20% of the patients. The overall internal consistency of the questionnaire was greater than 0.7 (Cronbach's α), with only two domains (family roles and personality) having lower internal consistency values. The results displayed high test-retest reliability: all domains had Spearman's rho scores of over 0.8. The questionnaire has adequate construct validity. Conclusions: Our preliminary results showed that the psychometric properties (acceptability and reliability) of the Spanish SSQOL questionnaire are good, encouraging, and comparable to those of other similar studies. This study is the first approach to validate the Spanish version of the SSQOL questionnaire in Mexican stroke survivors. © 2013 International Society for Pharmacoeconomics and Outcomes Research (ISPOR).

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