Validation of the Spanish version of the Chronic Pain Acceptance Questionnaire (CPAQ) for the assessment of acceptance in fibromyalgia.
BACKGROUND
The aim of this study was to validate a Spanish version of the Chronic Pain Acceptance Questionnaire (CPAQ). Pain acceptance is the process of giving up the struggle with pain and learning to live a worthwhile life despite it. The Chronic Pain Acceptance Questionnaire (CPAQ) is the questionnaire most often used to measure pain acceptance in chronic pain populations.


METHODS
A total of 205 Spanish patients diagnosed with fibromyalgia syndrome who attended our pain clinic were asked to complete a battery of psychometric instruments: the Pain Visual Analogue Scale (PVAS) for pain intensity, the Hospital Anxiety and Depression Scale (HADS), the Medical Outcome Study Short Form 36 (SF-36), the Pain Catastrophising Scale (PCS) and the Fibromyalgia Impact Questionnaire (FIQ).


RESULTS
Analysis of results showed that the Spanish CPAQ had good test-retest reliability (intraclass correlation coefficient 0.83) and internal consistency reliability (Cronbach's alpha: 0.83). The Spanish CPAQ score significantly correlated with pain intensity, anxiety, depression, pain catastrophising, health status and physical and psychosocial disability. The Scree plot and a Principal Components Factor analysis confirmed the same two-factor construct as the original English CPAQ.


CONCLUSIONS
The Spanish CPAQ is a reliable clinical assessment tool with valid construct validity for the acceptance measurement among a sample of Spanish fibromyalgia patients. This study will make it easier to assess pain acceptance in Spanish populations with fibromyalgia.
Rodero
Baltasar
B
Department of Psychiatry, Miguel Servet University Hospital, Instituto Aragonés de Ciencias de la Salud, Spain.
García-Campayo
Javier
J
Casanueva
Benigno
B
del Hoyo
Yolanda Lopez
YL
Serrano-Blanco
Antoni
A
Luciano
Juan V
JV
D000328:Adult; D000368:Aged; D001007:Anxiety / Q000175:diagnosis / Q000209:etiology; D002908:Chronic Disease; D003863:Depression / Q000175:diagnosis / Q000209:etiology; D005260:Female; D005356:Fibromyalgia / Q000523:psychology*; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D011594:Psychometrics; D015203:Reproducibility of Results; D013030:Spain; D011795:Surveys and Questionnaires
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