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

Structural validity of the Chronic Pain Coping Inventory-Brazilian version

Layz Alves Ferreira Souza  1 , Lilian Varanda Pereira  1 , Louise Amália de Moura  1 , Leidy-Johanna Rueda Díaz  2 , Diná de Almeida Lopes Monteiro da Cruz  3 , José Aparecido Da Silva  4
Affiliations

Structural validity of the Chronic Pain Coping Inventory-Brazilian version

Layz Alves Ferreira Souza et al. PLoS One. .

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.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Path map of Relaxation scale.
Fig 2
Fig 2. Path map of Task Persistence scale.
Fig 3
Fig 3. Path map of Exercise/Stretching scale.
Fig 4
Fig 4. Path map of Seeking social support scale.
Fig 5
Fig 5. Path map of Coping Self-statements scale.
Fig 6
Fig 6. Path map of Pacing scale.
Fig 7
Fig 7. Path map of Resting scale.
Fig 8
Fig 8. Path map of Guarding scale.
Fig 9
Fig 9. Path map of Asking for assistance scale.
See this image and copyright information in PMC

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