Přispěvatelé: |
Mingels, Sarah, Neblett, Randy, Matheve, Thomas, Van Goethem, Ann, Huybrechts, Xavier, Corten, Kristoff, Gerits, Dave, Vandevoort, Dagmar, Physiotherapy, Human Physiology and Anatomy, DE BAETS, Liesbet, SERGOORIS, Abner, NEBLETT, Randy, MATHEVE, Thomas, MINGELS, Sarah, VAN GOETHEM, Ann, HUYBRECHTS, Xavier, CORTEN, Kristoff, GERITS, Dave, VANDEVOORT, Dagmar, TIMMERMANS, Annick, JANSSENS, Lotte |
Popis: |
Objectives The Fear-Avoidance Components Scale (FACS) is a recently developed patient-reported instrument assessing different constructs related to the fear-avoidance model of pain. The aim was to translate the original English FACS into Dutch (FACS-D) and assess its measurement properties in persons with chronic musculoskeletal pain. Methods The original English FACS (20 item-scale, range: 0–100) was translated in Dutch through standard forward-backward translation methodology. The FACS-D’s measurement properties were evaluated in 224 persons with chronic musculoskeletal pain. Internal consistency, test-retest reliability and measurement error were assessed with the Cronbach’s alpha coefficient (α), intraclass correlation coefficient (ICC), and standard error of measurement (SEM). Construct validity was assessed through inter-item correlation analyses, exploratory factor analysis, association with other fear-avoidance-related constructs, and hypothesis testing. Results Internal consistency, test-retest reliability and hypotheses testing were good (α=0.92; ICC=0.92, CI 0.80–0.96; 7/8 hypotheses confirmed). Similar to the original FACS and other translated versions, a two-factor model best fit the data. However, the item distribution differed from other versions. One factor represented “pain-related cognitions and emotions” and a second factor represented “avoidance behaviour.” In contrast to the original FACS, low inter-item correlations for item 12 were found. The FACS-D was more strongly associated with fear-avoidance-related constructs of pain severity, perceived disability, feelings of injustice, and depressive/anxiety symptoms than the other fear-avoidance-related scales studied here. Conclusions The FACS-D demonstrated good reliability and construct validity, suggesting that it may be a useful measure for Dutch-speaking healthcare providers. Two clinically relevant factors, with a different item distribution than the original FACS, were identified: one covering items on pain-related cognitions and emotions, and one covering items on avoidance behaviour. The stronger association between FACS-D and fear-avoidance related constructs suggests that the FACS-D may be more effective in evaluating the cognitive, emotional and behavioural constructs of pain-related fear-avoidance than other similar measures. |