Validierung der deutschen Übersetzung des Injustice Experience Questionnaire (IEQ) in 5 ambulanten Schmerzbehandlungseinrichtungen

Steiger, Beat; Welsch, Katja; Niederstrasser, Nils Georg; Hartmann, Sven; Nilges, P.; Ljutow, A.; Ettlin, Dominik A

doi:10.1007/s00482-018-0345-z

Cited by 8 publications

(5 citation statements)

References 32 publications

(49 reference statements)

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“…The IEQ has proven to be a good predictor for delayed healing in patients experiencing pain and post-traumatic stress (6,74,75). However, we are unaware of the use of this questionnaire in the OFP domain, except for its German-language validation (28). Notably, patients perceiving injustice also had pain for a longer duration compared to subjects with lower IEQ scores (r = 0.27; P < 0.001).…”

Section: Correlations Between Pain and Well-being Scoresmentioning

confidence: 99%

The Pain–to–Well-Being Relationship in Patients Experiencing Chronic Orofacial Pain

Bhalang

Steiger²,

Lukic

et al. 2020

Front. Neurol.

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Introduction: Orofacial pain features may negatively influence a person's well-being and vice versa. Some aspects of well-being can be measured with axis II instruments that assess patients' psychosocial and behavioral status. The aim of this study was to investigate associations between pain features and psychosocial variables as indicators of well-being.Materials and Methods: Seven hundred ninety-nine anonymized datasets collected using the Web-based Interdisciplinary Symptom Evaluation (WISE) of patients reporting to the Interdisciplinary Orofacial Pain Unit, University of Zurich, between March 19, 2017 and May 19, 2019, were analyzed. Pain features including intensity, number of locations, impact, and duration were evaluated. Psychometric measures assessed pain-related catastrophizing and disability, illness perception, distress, anxiety, depression, injustice experience, dysmorphic concerns, and insomnia.Results: Most patients were between 30 and 59 years old (58.3%), female (69.8%), working (66.0%), and experienced pain for more than 6 months (68.5%). Pain intensities were higher in women than men and higher in disabled than working patients. Scores indicating elevated stress and depression were also observed in disabled patients. The sample prevalence rates of clinically relevant axis II instrument scores were as follows: Graded Chronic Pain Scale for the Head (GCPS-H), 27%; Patient Health Questionnaire 4 (PHQ4), 21%; PHQ9, 21%; Pain Catastrophizing Scale (PCS), 20%; General Anxiety Disorder 7 (GAD7), 15%; Insomnia Severity Index (ISI), 15%; Injustice Experience Questionnaire (IEQ), 14%; GCPS for the Body (GCPS-B), 13%; PHQ for Stress (PHQstr), 6%; and Dysmorphic Concern Questionnaire (DCQ), 2%. Noteworthy results of correlation analysis of the clinically relevant axis II scores and pain measures were as follows: the PHQstr had moderate associations (0.34–0.43) with the sum of pain intensity at rest and during function, number of pain locations, and typical pain intensity. The IEQ scores were moderately associated with typical pain intensity at 0.39. The DCQ scores were moderately associated with pain extension at 0.41.Conclusions: Moderate correlations of certain pain and well-being measures were found in patients reporting clinically relevant stress, injustice experience, and dysmorphic concern, all of which reflect impaired well-being. PHQ4 is suitable for routine distress screening in the clinical setting.

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Section: Correlations Between Pain and Well-being Scoresmentioning

confidence: 99%

The Pain–to–Well-Being Relationship in Patients Experiencing Chronic Orofacial Pain

Bhalang

Steiger²,

Lukic

et al. 2020

Front. Neurol.

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“…In validating our Hebrew version of the IEQ, we confirmed a 1-factor structure for all 12 items with excellent reliability. Previous validations and translations of the IEQ have yielded mixed results regarding a 2-factor [64][65][66]69 versus 2-factor 19,67,68 structure, although the latter consistently reports very high overlap between the components. As such, our findings support Sullivan et al's 7 original conception that the IEQ might be best construed as a complex but unitary construct, with the theoretical subscales not deriving statistically separate components.…”

Section: Discussionmentioning

confidence: 98%

“…To test the structural validity, we conducted a factor analysis using Principal Component Analysis (PCA) with oblique (direct oblimin) rotation. Although some validations of the IEQ have employed Confirmatory Factor Analysis, 64,68,69 we opted for PCA in line with the many other IEQ validation studies. 7,19,[65][66][67] Given the varied findings of factor analyses within these papers, we concluded that the more exploratory PCA was preferable to a confirmatory method.…”

Section: Discussionmentioning

confidence: 99%

“…To date, the IEQ has been validated in multiple languages. 19,[64][65][66][67][68][69] We further aimed to translate and validate a Hebrew version of the IEQ, confirming its structure using factor analysis and measuring internal consistency using Cronbach alpha. In line with previous findings, we hypothesized a linear trend such that PI (as measured by the IEQ), state and trait anger, and measures of anxiety, depression, and pain catastrophizing will be greater in FM+A/D compared with FM-A/D, RA, and PFCs, respectively.…”

mentioning

confidence: 99%

“…In view of the above, the present study aimed to compare PI and anger across 4 diagnostic groups: FM patients with comorbid depression/anxiety (FM+A/D); FM patients without comorbid depression/anxiety (FM-A/D), RA patients, and PFCs. To date, the IEQ has been validated in multiple languages 19,64–69 . We further aimed to translate and validate a Hebrew version of the IEQ, confirming its structure using factor analysis and measuring internal consistency using Cronbach alpha.…”

mentioning

confidence: 99%

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Perceived Injustice and Anger in Fibromyalgia with and without Comorbid Mental Health Conditions

Gilam,

Silvert,

Raev

et al. 2024

The Clinical Journal of Pain

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Objectives: Perceived injustice (PI), assessed by the Injustice Experience Questionnaire (IEQ), is an important trigger of anger. Both PI and anger are associated with adverse chronic pain outcomes, and with comorbid mental health severity. We aimed to examine the roles of PI and anger in mediating pain across Fibromyalgia patients, with and without comorbid anxiety/depression (FM+A/D, FM-A/D respectively), as well as Rheumatoid Arthritis (RA), and healthy controls (HC). We hypothesized the highest levels of PI, anger, and pain in FM+A/D patients, followed by FM-A/D, RA, and HC, thus also validating a Hebrew version of the IEQ. Methods: We translated the IEQ using the forward-backward method, and collected data online. Based on self-reported anxiety/depression, the sample comprised 66 FM+A/D patients, 64 FM-A/D, 34 RA, and 32 HC. Assessments included the IEQ, state and trait anger, pain intensity, anxiety, depression, and pain catastrophizing. Structure and reliability of the Hebrew IEQ were examined using factor analysis and Cronbach’s alpha. Bootstrapped-based modelling was used to test the roles of state and trait anger in mediating and moderating the relationship between PI and pain intensity. Results: We confirmed a one-factor structure of the IEQ, with excellent reliability. FM+A/D patients demonstrated the highest scores in all measures. Within this group, trait anger moderated the mediating effect of state anger in the relationship between PI and pain intensity. Discussion: Our findings validate a Hebrew IEQ, and highlight the importance of PI and state and trait anger in the differential manifestation of mental health comorbidity in FM.

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Test-Retest Reliability and Construct Validity of the Dutch Injustice Experience Questionnaire in Patients with Chronic Pain

Bults

Reneman

Wilgen

et al. 2020

Psychol. Inj. and Law

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Perceived injustice is defined as an appraisal of the severity of loss, blame, a sense of unfairness, and irreparability of loss related to pain. It has a negative impact on health and is associated with poor recovery outcomes in pain rehabilitation programs. In order to measure, the Injustice Experience Questionnaire (IEQ) was developed, but the reliability and validity of the Dutch version of the IEQ had not been studied. This study aimed to investigate construct validity and test-retest reliability of the Dutch IEQ. Included patients were 281 adults with multi-factorial chronic pain (> 3 months) from two health care settings. All patients filled out questionnaires that measured perceived injustice, pain characteristics, central sensitization, disability, pain catastrophizing, pain acceptance, depression, anxiety, PTSD symptoms, anger, and perceived illness threat. Thirteen hypotheses on the strength of the correlations between the IEQ and the other measurements were formulated a priori. Correlations were calculated using Pearson correlation coefficients. To evaluate test-retest reliability, the IEQ was assessed 2 weeks later and intra-class correlations were computed. All measurements, apart from pain duration and number of pain sites, were significantly correlated with the IEQ. Eleven out of 13 hypotheses were confirmed. Intra-class correlation between the first and second assessments of the IEQ was 0.87. The results support the construct validity of the Dutch IEQ and suggest that test-retest reliability is good.

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Validierung der deutschen Übersetzung des Injustice Experience Questionnaire (IEQ) in 5 ambulanten Schmerzbehandlungseinrichtungen

Abstract: Schlussfolgerung: Die Analysen attestieren der deutschen Übersetzung des IEQ ausgezeichnete psychometrische Eigenschaften. Somit liegt mit der deutschsprachigen Version des IEQ ein validierter Fragebogen zum Screening auf wahrgenommene Ungerechtigkeit vor.

Cited by 8 publications

References 32 publications

The Pain–to–Well-Being Relationship in Patients Experiencing Chronic Orofacial Pain

The Pain–to–Well-Being Relationship in Patients Experiencing Chronic Orofacial Pain

Perceived Injustice and Anger in Fibromyalgia with and without Comorbid Mental Health Conditions

Test-Retest Reliability and Construct Validity of the Dutch Injustice Experience Questionnaire in Patients with Chronic Pain

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