Development and validation of a brain fog scale for coeliac disease

© 2024 The Authors. Alimentary Pharmacology & Therapeutics published by John Wiley & Sons Ltd..

BACKGROUND: Brain fog is a subjective cognitive impairment commonly reported in coeliac disease. A standardised tool to define and assess it is an important unmet need.

AIMS: To develop a patient-informed tool to assess brain fog in coeliac disease to support clinical care, research and drug development.

METHODS: A pilot online study defined patient descriptors of brain fog. A second study evaluated the factor structure and performance of the scale across two-time points ('Now' and in the 'Past week'). One month later, participants were invited to repeat the study with two online cognitive processing tests, the Stroop task and the trail making test.

RESULTS: Among adults with treated coeliac disease, 37 (91.9% F) participated in the pilot study and 510 (88.8% F) in the second study of whom 99 repeated the study 1 month later with 51 completing cognitive testing. The most common brain fog descriptors were 'difficulty focusing', 'difficulty thinking' and 'difficulty finding the right words and communicating'. The 12-item scale reflects 'cognitive impairment' and 'somatic and affective experience' and demonstrates strong psychometric properties. It tracked with patients report of brain fog being present or absent across two-time points. It did not significantly correlate with the cognitive tests.

CONCLUSION: The brain fog assessment and severity scale is the first patient-informed clinical outcomes assessment tool measuring brain fog in coeliac disease. It is brief and validated for two time-based formats. Further research coupling it with biomarker discovery is needed to confirm its validity as a predictor of cognitive performance.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:59

Enthalten in:

Alimentary pharmacology & therapeutics - 59(2024), 10 vom: 20. Apr., Seite 1260-1270

Sprache:

Englisch

Beteiligte Personen:

Knowles, Simon R [VerfasserIn]
Apputhurai, Pragalathan [VerfasserIn]
Tye-Din, Jason A [VerfasserIn]

Links:

Volltext

Themen:

Assessment scale
Brain fog
Coeliac disease
Cognitive impairment
Journal Article
Limitations
Research Support, Non-U.S. Gov't
Standardised tool
Validation Study

Anmerkungen:

Date Completed 23.04.2024

Date Revised 23.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1111/apt.17942

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369356152