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Structural validity of the Chronic Pain Coping Inventory—Brazilian version

Author

Listed:
  • 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

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.

Suggested Citation

  • 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, 2021. "Structural validity of the Chronic Pain Coping Inventory—Brazilian version," PLOS ONE, Public Library of Science, vol. 16(2), pages 1-19, February.
    • Handle: RePEc:plo:pone00:0246294
    DOI: 10.1371/journal.pone.0246294
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