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Shoulder pain and disability index: cross cultural validation and evaluation of psychometric properties of the Spanish version.

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Abstract
BACKGROUND The Shoulder Pain Disability Index (SPADI) is a recently published but widely used outcome measure. METHODS This study included 136 patients with shoulder disorders. SPADI was first translated and back-translated and then subjected to psychometric validation. Participants completed the Spanish versions of the SPADI, general health (SF-12), the Simple Shoulder Test (SST), Disability of Arm, Shoulder, and Hand (DASH) questionnaires and a pain intensity visual analog scale (VAS). RESULTS The factors explained 62.8 % of the variance, with an internal consistency of α = 0.916 and 0.860, respectively. The confirmatory factor analysis showed a Comparative Fit Index of 0.82 and a Normed Fit Index of 0.80. The Root Mean Square Error of Aproximation was 0.12. The x (2) test for the 2-factor model was significant (x (2) = 185.41, df = 62, p < 0.01). The test-retest reliability was high, with an item ranging of the interclass correlation coefficient (ICC) from 0.89 to 0.93. The ICC for the total score was 0.91 (95 % CI 0.88 to 0.94). Measurement error by minimal detectable change (MDC)95 was 12.2 %. In the construct validity analysis, strong positive correlations were observed between Spanish Version of the SPADI and DASH (pain: r = 0.80; p < 0.01; disability: r = 0.76; p < 0.01). Moderate positive correlations were observed between Spanish Version of the SPADI and VAS (pain: r = 0.67; p < 0.01; disability: r = 0.65; p < 0.01). Moderate negative correlations were obtained between Spanish Version of the SPADI and SST-Sp (pain: r = -0.71; p < 0.01; disability: r = -0.75; p < 0.01). However, pain total Spanish Version of the SPADI was only weakly correlated with physical and mental components of SF-12 (both r = 0.40; p < 0.01). CONCLUSIONS This Spanish version of SPADI demonstrated satisfactory psychometric properties in a patient sample in the hospital setting.
Description
Journal Article; Research Support, Non-U.S. Gov't;
MeSH Terms
Medical Subject Headings::Anatomy::Body Regions::Extremities::Upper Extremity::Arm
Medical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Factor Analysis, Statistical
Medical Subject Headings::Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans
Medical Subject Headings::Health Care::Health Care Quality, Access, and Evaluation::Quality of Health Care::Health Care Evaluation Mechanisms::Outcome and Process Assessment (Health Care)
Medical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Diagnostic Techniques, Neurological::Neurologic Examination::Pain Measurement
Medical Subject Headings::Psychiatry and Psychology::Behavioral Disciplines and Activities::Psychological Tests::Psychometrics
Medical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Evaluation Studies as Topic::Reproducibility of Results
Medical Subject Headings::Anatomy::Body Regions::Extremities::Upper Extremity::Shoulder
Medical Subject Headings::Diseases::Musculoskeletal Diseases::Joint Diseases::Arthralgia::Shoulder Pain
Medical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Questionnaires
Medical Subject Headings::Information Science::Information Science::Communication::Language::Language Arts::Translating
Medical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Visual Analog Scale
DeCS Terms
CIE Terms
Keywords
Shoulder, Spanish, Patient reported outcomes, Análisis factorial, Evaluación de Resultado (atención de salud), Dimensión del dolor, Psicometría, Reproducibilidad de resultados, Hombro, Dolor de hombro, Encuestas y cuestionarios, Traducción, Escala visual analógica
Citation
Membrilla-Mesa MD, Cuesta-Vargas AI, Pozuelo-Calvo R, Tejero-Fernández V, Martín-Martín L, Arroyo-Morales M. Shoulder pain and disability index: cross cultural validation and evaluation of psychometric properties of the Spanish version. Health Qual Life Outcomes. 2015; 13(1):200