Cross-cultural adaptation and validity of the Spanish central sensitization inventory.
The Central Sensitization Inventory (CSI) is a new patient-reported instrument, which measures symptoms related to Central Sensitivity Syndromes and Central Sensitization. The aim of this study was to translate the CSI into Spanish, and then to perform a psychometric validation, including a factor analysis to reveal the underlying structure.


METHODS
In this two-stage psychometric study participated 395 subjects with various chronic pain conditions and that were recruited from two Primary Care Centres. The CSI was cross-culturally adapted to Spanish through double forward and backward translations. The psychometric properties were then evaluated with analyses of construct validity, factor structure and internal consistency. One subgroup (n = 45) determined test-retest reliability at 7 days.


RESULTS
The Spanish Version of CSI demonstrated high internal consistency (α = 0.872) and test-retest reliability (r = 0.91). Factor structure was one-dimensional and supported construct validity.


CONCLUSIONS
The psychometric properties of the Spanish version were found to be strong, with high test-retest reliability and internal consistency, with similar psychometric properties to the English language version. Unlike the English version, however, a one factor solution was found to be a best fit for the Spanish version.
Departamento de Fisioterapia, Cátedra de Fisioterapia, Instituto Investigación de Biomédica de Málaga (IBIMA) Av/Arquitecto Peñalosa, Universidad de MálagaAndalucía Tech (Teatinos Campus Expansión), 29071 Málaga, Spain ; Faculty of Health, School of Clinical Science, Queensland University of Technology, Brisbane, QLD Australia.
Antonio Ignacio
0000-0002-8880-4315
AI
Cuesta-Vargas
Departamento de Fisioterapia, Cátedra de Fisioterapia, Instituto Investigación de Biomédica de Málaga (IBIMA) Av/Arquitecto Peñalosa, Universidad de MálagaAndalucía Tech (Teatinos Campus Expansión), 29071 Málaga, Spain.
Cristina
C
Roldan-Jimenez
PRIDE Research Foundation, Dallas, TX USA.
Randy
R
Neblett
Department of Psychology, College of Science, Center of Excellence for the Study of Health and Chronic Illnesses, The University of Texas at Arlington, Arlington, TX USA.
Robert J
RJ
Gatchel
Central Sensitization Inventory (CSI); Central sensitivity syndrome; Central sensitization; Chronic pain; Psychometrics; Spanish