CROSS-CULTURAL ADAPTATION TO PORTUGUESE-BRAZIL AND VERIFICATION OF MEASUREMENT PROPERTIES OF THE PAIN STAGES OF CHANGE QUESTIONNAIRE (PSOCQ)

• Grant number: 23/14156-4
• Support Opportunities: Scholarships in Brazil - Master
• Start date until: April 01, 2024
• End date until: April 30, 2025
• Field of knowledge: Health Sciences - Physiotherapy and Occupational Therapy
• Principal Investigator: Thaís Cristina Chaves
• Grantee: Roger Berg Rodrigues Pereira
• Host Institution: Centro de Ciências Biológicas e da Saúde (CCBS). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

Although evidence supports the effectiveness of behaviors that suggest self-management of chronic pain, the individual's readiness to adopt this strategy can influence the effectiveness of these treatments. The Pain Stage of Change Questionnaire (PSOCQ) is a measure that has been shown to be reliable and valid of patient readiness to self-manage pain in other countries. However, there is still no Brazilian version of PSOCQ. The objective of this study will be to carry out a cross-cultural adaptation into Brazilian Portuguese and verify the measurement properties (structural validity, internal consistency, reliability and error measurement, construct validity) of the PSOCQ in individuals with chronic low back pain (CLBP). The study will enroll a total of 130 participants diagnosed with CLBP. The cross-cultural adaptation process will occur in five stages: initial translation, translation synthesis, back-translation, expert committee meeting and testing of the pre-final version, which will be carried out with an initial sample of 30 participants. After completing the pre-final version test, the entire sample (n=100) will be considered in the measurement properties verification stage. The Intraclass Correlation Coefficient (ICC) will be used to analyze reliability. For structural validity, confirmatory factor analysis (CFA) will be employed. The standard error of measurement will be calculated using the formula EPM = DP x (1-CCI). The minimum detectable change will be calculated considering MDD = 1.96 x 2 x EPM. Spearman's correlation coefficient will be used to compare PSOCQ scores with other instruments. Correlations e .50 for instruments that measure the same construct, .30 to .50 for those that measure dissimilar but correlated constructs and < .30 for those that are not related. It is expected to provide an adequate tool to measure patients' readiness to adopt self-management of CLBP.