Psychometric validation of the Serbian version of the Fear Avoidance Component Scale (FACS)

Aleksandar Knezevic, Randy Neblett, Robert Joseph Gatchel, Milica Jeremic-Knezevic, Vojislava Bugarski-Ignjatovic, Snezana Tomasevic-Todorovic, Ksenija Boskovic, Antonio I. Cuesta-Vargas

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Objective The Fear Avoidance Components Scale (FACS) is a new patient-reported outcome (PRO) questionnaire designed to comprehensively evaluate fear avoidance (FA) beliefs and attitudes in persons with painful medical conditions. The original English version has demonstrated acceptable psychometric properties, including concurrent and predictive validity. Two factors have been identified: 1. general fear avoidance; and 2. types of activities that are avoided. Methods The FACS was first translated into Serbian, and then psychometrically validated. A cohort of 322 chronic musculoskeletal pain subjects completed the FACS-Serb and additional FArelated patient-reported outcome (PRO) measures. Their FACS-Serb scores were then compared to a cohort of 68 acute pain subjects. Results Test-retest reliability (ICC2,1 = 0.928) and internal consistency for both Factors (Cronbach a 0.904 and 0,880 respectively) were very good. An acceptable fit was found with a confirmatory factor analysis of the 2-factor model found with the original English version of the FACS. Strong associations were found among FACS-Serb scores and other PRO measures of pain catastrophizing, depressive/anxiety symptoms, perceived disability, and pain intensity (p<0.001 for all analyses). FACS-Serb total scores, separate Factor scores, and subjective pain ratings were significantly higher in the chronic vs. acute pain cohorts (p<0.001 for all analyses). Conclusions The FACS-Serb demonstrated strong psychometric properties, including strong reliability and internal consistency, criterion validity (through associations with other FA-related PRO measures), and discriminant validity (through comparisons with a separate acute pain cohort). The FACS-Serb appears to be a potentially useful pain-related assessment tool.

Original languageEnglish
Article numbere0204311
JournalPLoS ONE
Volume13
Issue number9
DOIs
StatePublished - 1 Sep 2018

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fearfulness
Psychometrics
Fear
pain
Factor analysis
Acute Pain
Catastrophization
Pain
Musculoskeletal Pain
Pain Measurement
anxiety
Reproducibility of Results
Chronic Pain
signs and symptoms (animals and humans)
Statistical Factor Analysis
questionnaires
Anxiety
Depression

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Knezevic, A., Neblett, R., Gatchel, R. J., Jeremic-Knezevic, M., Bugarski-Ignjatovic, V., Tomasevic-Todorovic, S., ... Cuesta-Vargas, A. I. (2018). Psychometric validation of the Serbian version of the Fear Avoidance Component Scale (FACS). PLoS ONE, 13(9), [e0204311]. https://doi.org/10.1371/journal.pone.0204311
Knezevic, Aleksandar ; Neblett, Randy ; Gatchel, Robert Joseph ; Jeremic-Knezevic, Milica ; Bugarski-Ignjatovic, Vojislava ; Tomasevic-Todorovic, Snezana ; Boskovic, Ksenija ; Cuesta-Vargas, Antonio I. / Psychometric validation of the Serbian version of the Fear Avoidance Component Scale (FACS). In: PLoS ONE. 2018 ; Vol. 13, No. 9.
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title = "Psychometric validation of the Serbian version of the Fear Avoidance Component Scale (FACS)",
abstract = "Objective The Fear Avoidance Components Scale (FACS) is a new patient-reported outcome (PRO) questionnaire designed to comprehensively evaluate fear avoidance (FA) beliefs and attitudes in persons with painful medical conditions. The original English version has demonstrated acceptable psychometric properties, including concurrent and predictive validity. Two factors have been identified: 1. general fear avoidance; and 2. types of activities that are avoided. Methods The FACS was first translated into Serbian, and then psychometrically validated. A cohort of 322 chronic musculoskeletal pain subjects completed the FACS-Serb and additional FArelated patient-reported outcome (PRO) measures. Their FACS-Serb scores were then compared to a cohort of 68 acute pain subjects. Results Test-retest reliability (ICC2,1 = 0.928) and internal consistency for both Factors (Cronbach a 0.904 and 0,880 respectively) were very good. An acceptable fit was found with a confirmatory factor analysis of the 2-factor model found with the original English version of the FACS. Strong associations were found among FACS-Serb scores and other PRO measures of pain catastrophizing, depressive/anxiety symptoms, perceived disability, and pain intensity (p<0.001 for all analyses). FACS-Serb total scores, separate Factor scores, and subjective pain ratings were significantly higher in the chronic vs. acute pain cohorts (p<0.001 for all analyses). Conclusions The FACS-Serb demonstrated strong psychometric properties, including strong reliability and internal consistency, criterion validity (through associations with other FA-related PRO measures), and discriminant validity (through comparisons with a separate acute pain cohort). The FACS-Serb appears to be a potentially useful pain-related assessment tool.",
author = "Aleksandar Knezevic and Randy Neblett and Gatchel, {Robert Joseph} and Milica Jeremic-Knezevic and Vojislava Bugarski-Ignjatovic and Snezana Tomasevic-Todorovic and Ksenija Boskovic and Cuesta-Vargas, {Antonio I.}",
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Knezevic, A, Neblett, R, Gatchel, RJ, Jeremic-Knezevic, M, Bugarski-Ignjatovic, V, Tomasevic-Todorovic, S, Boskovic, K & Cuesta-Vargas, AI 2018, 'Psychometric validation of the Serbian version of the Fear Avoidance Component Scale (FACS)', PLoS ONE, vol. 13, no. 9, e0204311. https://doi.org/10.1371/journal.pone.0204311

Psychometric validation of the Serbian version of the Fear Avoidance Component Scale (FACS). / Knezevic, Aleksandar; Neblett, Randy; Gatchel, Robert Joseph; Jeremic-Knezevic, Milica; Bugarski-Ignjatovic, Vojislava; Tomasevic-Todorovic, Snezana; Boskovic, Ksenija; Cuesta-Vargas, Antonio I.

In: PLoS ONE, Vol. 13, No. 9, e0204311, 01.09.2018.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Psychometric validation of the Serbian version of the Fear Avoidance Component Scale (FACS)

AU - Knezevic, Aleksandar

AU - Neblett, Randy

AU - Gatchel, Robert Joseph

AU - Jeremic-Knezevic, Milica

AU - Bugarski-Ignjatovic, Vojislava

AU - Tomasevic-Todorovic, Snezana

AU - Boskovic, Ksenija

AU - Cuesta-Vargas, Antonio I.

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N2 - Objective The Fear Avoidance Components Scale (FACS) is a new patient-reported outcome (PRO) questionnaire designed to comprehensively evaluate fear avoidance (FA) beliefs and attitudes in persons with painful medical conditions. The original English version has demonstrated acceptable psychometric properties, including concurrent and predictive validity. Two factors have been identified: 1. general fear avoidance; and 2. types of activities that are avoided. Methods The FACS was first translated into Serbian, and then psychometrically validated. A cohort of 322 chronic musculoskeletal pain subjects completed the FACS-Serb and additional FArelated patient-reported outcome (PRO) measures. Their FACS-Serb scores were then compared to a cohort of 68 acute pain subjects. Results Test-retest reliability (ICC2,1 = 0.928) and internal consistency for both Factors (Cronbach a 0.904 and 0,880 respectively) were very good. An acceptable fit was found with a confirmatory factor analysis of the 2-factor model found with the original English version of the FACS. Strong associations were found among FACS-Serb scores and other PRO measures of pain catastrophizing, depressive/anxiety symptoms, perceived disability, and pain intensity (p<0.001 for all analyses). FACS-Serb total scores, separate Factor scores, and subjective pain ratings were significantly higher in the chronic vs. acute pain cohorts (p<0.001 for all analyses). Conclusions The FACS-Serb demonstrated strong psychometric properties, including strong reliability and internal consistency, criterion validity (through associations with other FA-related PRO measures), and discriminant validity (through comparisons with a separate acute pain cohort). The FACS-Serb appears to be a potentially useful pain-related assessment tool.

AB - Objective The Fear Avoidance Components Scale (FACS) is a new patient-reported outcome (PRO) questionnaire designed to comprehensively evaluate fear avoidance (FA) beliefs and attitudes in persons with painful medical conditions. The original English version has demonstrated acceptable psychometric properties, including concurrent and predictive validity. Two factors have been identified: 1. general fear avoidance; and 2. types of activities that are avoided. Methods The FACS was first translated into Serbian, and then psychometrically validated. A cohort of 322 chronic musculoskeletal pain subjects completed the FACS-Serb and additional FArelated patient-reported outcome (PRO) measures. Their FACS-Serb scores were then compared to a cohort of 68 acute pain subjects. Results Test-retest reliability (ICC2,1 = 0.928) and internal consistency for both Factors (Cronbach a 0.904 and 0,880 respectively) were very good. An acceptable fit was found with a confirmatory factor analysis of the 2-factor model found with the original English version of the FACS. Strong associations were found among FACS-Serb scores and other PRO measures of pain catastrophizing, depressive/anxiety symptoms, perceived disability, and pain intensity (p<0.001 for all analyses). FACS-Serb total scores, separate Factor scores, and subjective pain ratings were significantly higher in the chronic vs. acute pain cohorts (p<0.001 for all analyses). Conclusions The FACS-Serb demonstrated strong psychometric properties, including strong reliability and internal consistency, criterion validity (through associations with other FA-related PRO measures), and discriminant validity (through comparisons with a separate acute pain cohort). The FACS-Serb appears to be a potentially useful pain-related assessment tool.

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Knezevic A, Neblett R, Gatchel RJ, Jeremic-Knezevic M, Bugarski-Ignjatovic V, Tomasevic-Todorovic S et al. Psychometric validation of the Serbian version of the Fear Avoidance Component Scale (FACS). PLoS ONE. 2018 Sep 1;13(9). e0204311. https://doi.org/10.1371/journal.pone.0204311