Understanding the role of psychological factors in individuals with perceived foor intolerance
: an exploratory study

Student thesis: Doctoral ThesisDoctor of Clinical Psychology

Abstract

Background: Non-allergenic perceived food intolerance (PFI) is a distressing condition reported by up to 35% of individuals, whereas the prevalence of food allergy (FA) is 0.9 –3%. The aim of the present paper is to systematically review the evidence for associated psychological, clinical and psychosocial factors in order to improve current understanding of PFI and contribute to future targeted interventions.
Methods: Articles published from 1970 until September 2019 were identified through Web of Science, Scopus, PsycINFO, MEDLINE, EMBASE and Global Health. Search terms involved PFI and various synonyms, combinations, operators, truncations, wild cards and limiters.Case-control, prospective cohort, cross-sectional and retrospective studies published in English thata) included a subject population of adults over 18 with PFI and b) examined psychological, clinical and/or psychosocial factors of PFI were reviewed in two stages against inclusion criteria, by three separate reviewers. The methodological quality was assessed, data were extracted, and a narrative synthesis was conducted.
Date of Award1 Oct 2020
Original languageEnglish
Awarding Institution
  • King's College London
SupervisorEmma Godfrey (Supervisor) & Lyndsay Hughes (Supervisor)

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