E2 ModerateModerate confidencePEM unclearCase-ControlPeer-reviewedMachine draft
Cognitive and behavioural responses to symptoms in adolescents with chronic fatigue syndrome: A case-control study nested within a cohort.
Loades, Maria Elizabeth, Rimes, Katharine, Lievesley, Kate et al. · Clinical child psychology and psychiatry · 2019 · DOI
Quick Summary
This study looked at how adolescents with ME/CFS think about and respond to their symptoms, compared to teenagers with asthma. Researchers found that young people with ME/CFS tend to have unhelpful thought patterns—like believing symptoms cause permanent damage—and unhelpful behaviors like pushing through activity or avoiding it completely. These unhelpful patterns were linked to more fatigue and disability over a 3-month follow-up period.
Why It Matters
Understanding that unhelpful thinking patterns and behaviours may contribute to fatigue maintenance in adolescents with ME/CFS has implications for developing targeted psychological interventions. This research helps explain why some adolescents experience worsening symptoms and disability, potentially offering new avenues for treatment beyond symptom management alone.
Observed Findings
- Adolescents with CFS scored significantly higher than asthma controls on all unhelpful cognitive and behavioural subscales.
- Damage beliefs independently predicted higher fatigue levels at 3-month follow-up in adolescents with CFS.
- All-or-nothing behaviour, catastrophising, and damage beliefs predicted worse physical functioning at follow-up.
- Parents' cognitions about their child's symptoms were associated with adolescents' own cognitive responses.
Inferred Conclusions
- Unhelpful cognitive and behavioural responses to symptoms are particularly prominent in adolescents with CFS compared to other chronic illnesses.
- These maladaptive responses may contribute to fatigue maintenance and disability progression in ME/CFS.
- Parental beliefs about symptoms may influence how adolescents think about and respond to their condition.
Remaining Questions
- Does addressing unhelpful cognitions and behaviours through intervention reduce fatigue and improve functioning in adolescents with ME/CFS?
- Do these cognitive and behavioural patterns emerge before ME/CFS onset or develop as a consequence of the illness?
- How do unhelpful thought patterns and behaviours interact with biological factors in ME/CFS symptom maintenance?
What This Study Does Not Prove
This study does not prove that unhelpful cognitions and behaviours *cause* fatigue or disability in ME/CFS; it only shows an association over 3 months. It also does not determine whether these thought patterns develop as a *result* of having ME/CFS rather than contributing to its maintenance. The small asthma comparison group limits generalizability of between-group comparisons.
Tags
Symptom:Cognitive DysfunctionFatigue
Phenotype:Pediatric
Method Flag:PEM Not DefinedWeak Case DefinitionSmall Sample
Metadata
- DOI
- 10.1177/1359104519835583
- PMID
- 30873864
- Review status
- Machine draft
- Evidence level
- Single-study or moderate support from human research
- Last updated
- 8 April 2026
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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