Structural validity of the Chronic Pain Coping Inventory-Brazilian version

Layz Alves Ferreira Souza; Lilian Varanda Pereira; Louise Amália de Moura; Leidy-Johanna Rueda Díaz; Diná de Almeida Lopes Monteiro da Cruz; José Aparecido Da Silva

doi:10.1371/journal.pone.0246294

Structural validity of the Chronic Pain Coping Inventory-Brazilian version

PLoS One. 2021 Feb 8;16(2):e0246294. doi: 10.1371/journal.pone.0246294. eCollection 2021.

Authors

Layz Alves Ferreira Souza¹, Lilian Varanda Pereira¹, Louise Amália de Moura¹, Leidy-Johanna Rueda Díaz², Diná de Almeida Lopes Monteiro da Cruz³, José Aparecido Da Silva⁴

Affiliations

¹ College of Nursing, Federal University of Goiás, Goiânia, Goiás, Brazil.
² College of Nursing, Universidad Industrial de Santander, Bucaramanga, Santander, Colombia.
³ College of Nursing, University of São Paulo, São Paulo, São Paulo, Brazil.
⁴ Department of Psychology, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil.

Abstract

Background: The Chronic Pain Coping Inventory (CPCI) has been widely used to measure coping with pain, however, the psychometric properties of the Brazilian CPCI are unknown.

Aim: To verify the validity and reliability of the CPCI-Brazilian version.

Materials and methods: A sample of 705 outpatients with chronic pain participated in the study. Cronbach's alpha, corrected item-total correlations, and confirmatory factor analysis were performed, using the method of Diagonally Weighted Least Squares.

Results: Construct validity was supported with a factor loading range of 0.36-0.90 (9 factors) corroborating original loads. The final model had adequate fit with items 42 and 54 excluded, D.F = 2174, TLI = 0.96; CFI = 0.96 and RMSEA = 0.051(p = 0.067). Eight of the nine CPCI scales showed satisfactory reliability (Cronbach's alpha ranged from 0.70 to 0.92). The Relaxation scale obtained a low alpha value (0.53).

Conclusion: The CPCI-Brazilian version, after exclusion of items 42 and 54, is valid to measure chronic pain coping in Brazilian adults.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adaptation, Psychological*
Adolescent
Adult
Aged
Aged, 80 and over
Brazil
Chronic Pain / psychology*
Factor Analysis, Statistical
Female
Humans
Male
Middle Aged
Reproducibility of Results
Surveys and Questionnaires
Young Adult

Grants and funding

The main researcher of this study was supported by the Research Support Foundation of the State of Goiás (Fundação de Amparo à Pesquisa do Estado de Goiás - FAPEG) [grant number: 2014.102.670.005.06]; and the National Council for Scientific and Technological Development (Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq) [grant number: 552408/2011-5]. The funding sources had no involvement in any study decisions.