E2 ModerateModerate confidencePEM not requiredCross-SectionalPeer-reviewedReviewed
Standard · 3 min
Illness perceptions in patients with fibromyalgia.
van Ittersum, M W, van Wilgen, C P, Hilberdink, W K H A et al. · Patient education and counseling · 2009 · DOI
Quick Summary
This study looked at how people with fibromyalgia understand and perceive their illness by having 196 patients complete a questionnaire. The researchers found that fibromyalgia patients often feel confused about their condition, believe it will last a long time, and worry it will significantly impact their daily life. The questionnaire tool was found to be reliable for measuring these beliefs in Dutch-speaking fibromyalgia patients.
Why It Matters
Understanding how patients perceive their chronic illness is crucial because these perceptions influence treatment adherence, coping strategies, and health outcomes. For ME/CFS patients, this work highlights that illness beliefs are disease-specific and vary significantly from other chronic conditions, suggesting that interventions must be tailored to address each condition's unique perceptual profile. This supports the need for condition-specific psychological interventions in post-viral fatigue conditions.
Observed Findings
FM patients demonstrated lack of understanding about their illness etiology and mechanisms
FM patients expected their condition to be chronic with persistent consequences
FM patients anticipated substantial negative functional and social consequences
Significant differences were found in 17 of 24 domains when comparing FM to CFS, RA, and CHD patients
The IPQ-R FM Dutch language version showed acceptable internal consistency and psychometric properties overall
Inferred Conclusions
Illness perceptions in fibromyalgia are distinct from other chronic diseases and cannot be assumed comparable across conditions
The IPQ-R FM-Dlv is a valid tool for assessing how Dutch-speaking fibromyalgia patients perceive their illness
Clinicians should recognize that patients with FM have characteristic illness beliefs that may require targeted educational interventions
Disease-specific questionnaire versions may be necessary to accurately capture illness perceptions across different conditions
Remaining Questions
How do illness perceptions in ME/CFS compare to fibromyalgia, and are they similarly distinct from other chronic diseases?
What This Study Does Not Prove
This study does not prove that illness perceptions cause symptom outcomes or functional decline—it only describes what beliefs patients hold. The study primarily concerns fibromyalgia rather than ME/CFS, and language/version differences prevent direct comparison of illness perceptions across disease groups. It does not establish whether modifying illness perceptions improves patient outcomes.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
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