[Validity and reliability of the Portuguese version of the Pain Coping Inventory]

To analyze the validity and reliability of the Portuguese version of the Pain Coping Inventory (PCI) in order to perform a cultural adaptation to permit its use in Portuguese population of non-oncological chronic pain patients.

The PCI was translated to Portuguese and then again to English; moreover a spoken reflection was made. 180 participants with clinical diagnosis associated to chronic pain (namely, fibromyalgia and rheumatoid arthritis) were asked to fill in the self-report measure. Procedures of exploratory factorial analysis, confirmatory factorial analysis, and internal consistency were performed.

Based on the methodological procedures, results have shown evidence of a factorial structure comprised by five factors which assess distinct chronic pain coping strategies namely, withdrawal, worrying, distraction, pain transformation, and reducing demands.

The Portuguese version of PCI has shown evidence of validity and reliability which supports the relevance of its use in both research and clinical context.