Psychometric properties of an Arabic translation of the chronic pain acceptance questionnaire (CPAQ) in a sample of patients with chronic pain

Disabil Rehabil. 2023 Dec 15:1-12. doi: 10.1080/09638288.2023.2293987. Online ahead of print.

Abstract

Purpose: Chronic pain (CP) acceptance is a major factor in determining the well-being of patients with chronic pain. The chronic pain acceptance questionnaire (CPAQ) was translated and validated into Arabic (CPAQ-Ar).

Methods: 244 patients with CP completed the CPAQ-Ar, the Beck Depression Inventory-II (BDI-II), the short form health survey (SF-36), the Pain Catastrophizing Scale (PCS), the Pittsburgh Sleep Quality Index (PSQI), the Modified Fatigue Impact Scale (MFIS), and the Depression Anxiety Stress Scale 21 (DASS-21). 110 patients completed the CPAQ-Ar twice separated by two weeks to investigate test-retest reliability.

Results: Cronbach's α was 0.902 while the intraclass correlation coefficient (ICC) was 0.917. The standard error measurement (SEM) was seven points while the minimal detectable change with 95% confidence interval (MDC95) was seventeen points. The CPAQ-Ar showed moderate to high correlations with the PCS, the BDI-II, the SF-36, the MFIS, the PSQI, and the DASS-21 indicating a good concurrent validity. Exploratory factor analysis confirmed that the CPAQ-Ar consists of two subscales. Better pain acceptance associated with male gender, older people, employed participants, low pain intensity, and single pain site.

Conclusions: The CPAQ-Ar is a valid and reliable tool for the measurement of pain acceptance in Arabic speaking patients with CP.

Keywords: Arabic; Validity; acceptance associated factors; chronic pain acceptance questionnaire (CPAQ-20); minimal detectable change; pain; reliability.