Validation of the Brazilian version of the child pain catastrophizing scale and its relationship with a marker of central sensitization.

Autor:	Schneider L; Universidade Federal do Rio Grande do Sul (UFRGS), Faculdade de Medicina, Programa de Pós-graduação em Ciências Médicas, Porto Alegre, RS, Brazil; Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Anestesia e Medicina Perioperatória, Porto Alegre, RS, Brazil; Hospital de Clínicas de Porto Alegre (HCPA), Laboratório de Dor e Neuromodulação, Porto Alegre, RS, Brazil., Castro SMJ; Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de Estatística, Porto Alegre, RS, Brazil., Mallman ES; Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Anestesia e Medicina Perioperatória, Porto Alegre, RS, Brazil., Evaldt CA; Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Anestesia e Medicina Perioperatória, Porto Alegre, RS, Brazil., Souza A; Hospital de Clínicas de Porto Alegre (HCPA), Laboratório de Dor e Neuromodulação, Porto Alegre, RS, Brazil., Rodrigues JDS; Universidade Federal do Rio Grande do Sul (UFRGS), Faculdade de Medicina, Porto Alegre, RS, Brazil., Mendanha C; Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Anestesia e Medicina Perioperatória, Porto Alegre, RS, Brazil., Caumo W; Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Anestesia e Medicina Perioperatória, Porto Alegre, RS, Brazil; Hospital de Clínicas de Porto Alegre (HCPA), Laboratório de Dor e Neuromodulação, Porto Alegre, RS, Brazil; Universidade Federal do Rio Grande do Sul (UFRGS), Faculdade de Medicina, Departamento de Cirurgia, Porto Alegre, RS, Brazil., Stefani LC; Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Anestesia e Medicina Perioperatória, Porto Alegre, RS, Brazil; Hospital de Clínicas de Porto Alegre (HCPA), Laboratório de Dor e Neuromodulação, Porto Alegre, RS, Brazil; Universidade Federal do Rio Grande do Sul (UFRGS), Faculdade de Medicina, Departamento de Cirurgia, Porto Alegre, RS, Brazil. Electronic address: lpstefani@hcpa.edu.br.
Jazyk:	angličtina
Zdroj:	Brazilian journal of anesthesiology (Elsevier) [Braz J Anesthesiol] 2022 Sep-Oct; Vol. 72 (5), pp. 614-621. Date of Electronic Publication: 2021 Apr 28.
DOI:	10.1016/j.bjane.2021.02.057
Abstrakt:	Objectives: The Pain Catastrophizing Scale-Child version (PCS-C) allows to identify children who are prone to catastrophic thinking. We aimed to adapt the Brazilian version of PCS-C (BPCS-C) to examine scale psychometric properties and factorial structure in children with and without chronic pain. Also, we assessed its correlation with salivary levels of Brain-Derived Neurotrophic factor (BDNF). Methods: The Brazilian version of PCS-C was modified to adjust it for 7-12 years old children. To assess psychometric properties, 100 children (44 with chronic pain from a tertiary hospital and 56 healthy children from a public school) answered the BPCS-C, the visual analogue pain scale, and questions about pain interference in daily activities. We also collected a salivary sample to measure BDNF. Results: We observed good internal consistency (Cronbach's value = 0.81). Parallel analysis retained 2 factors. Conﬁrmatory factor analysis of our 2-factor model revealed consistent goodness-of-fit (IFI = 0.946) when compared to other models. There was no correlation between visual analogue pain scale and the total BPCS-C score; however, there was an association between pain catastrophizing and difficulty in doing physical activities in school (p = 0.01). BPCS-C total scores were not different between groups. We found a marginal association with BPCS-C (r = 0.27, p = 0.01) and salivary BDNF levels. Discussion: BPCS-C is a valid instrument with consistent psychometric properties. The revised 2-dimension proposed can be used for this population. Children catastrophism is well correlated with physical limitation, but the absence of BPCS-C score differences between groups highlights the necessity of a better understanding about catastrophic thinking in children. (Copyright © 2021. Published by Elsevier Editora Ltda.)
Databáze:	MEDLINE
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