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This project has been setup to provide a step-change in our understanding of food allergy in adulthood by determining its prevalence in the adult population. It will provide data to allow the trajectories of the condition in relation to both persistent allergy from childhood and adult-onset food allergy to be described, together with adverse reactions to foods that are not mediated by IgE.
A robust evidence-base regarding the prevalence of adverse reactions, their patterns and risk factors for their development is required to underpin the development of effective policies seeking to manage, prevent and treat such conditions. Since adult food allergy has not been studied systematically in the UK in recent times, it is not known whether the patterns, prevalence and phenotypes of adverse reactions to foods in adults has changed over the last 20 years, particularly in relation to IgE-mediated reactions. Studies in longitudinal cohorts can provide new knowledge on the trajectories of food allergies from childhood into adulthood which will help inform the likely impact of such strategies.
The new knowledge arising from the project will facilitate the development of novel approaches and interventions for the prevention and treatment of food allergy in adulthood. The project will provide data which can be used to assess the impact of any public health policies or interventions designed to reduce the incidence and burden of food allergies in the UK in the future.
Objectives and Approach
The projects main objectives are:
The project will make use of two complementary epidemiological approaches. Firstly, A cross-sectional study will be used to assess the prevalence of food allergy across the adult population by utilising the diverse demographic of individuals from Manchester, Southampton and the Isle of Wight in urban and rural environments. This will provide a large group of participants, representative of the UK, who can be characterised with regards to adverse reactions to food including those which may not be mediated by IgE. A large community survey of adults aged 20-70 years will be carried out to identify the prevalence of food allergy in the general adult population.
Secondly, longitudinal cohorts which have now reached adulthood will be revisited, these contain high quality data including the factors that are likely to be associated with the development of food allergy in either childhood or adulthood which will allow the study team to determine the trajectory of food allergy across the life course. Well characterised cohorts including the Manchester Asthma and Allergy Study (MAAS), Isle of Wight 1989 Study and FAIR population-based cohorts will provide information on young adults aged between 20-32.
Clinical confirmation of food allergy (including oral food challenge) will be undertaken in both study populations. The data from the different centres and study populations will be collected, curated and integrated within an innovative e-lab health informatics platform and analysed to provide a robust estimate of the prevalence of food allergy in UK adults, identify the major foods involved and assess the contribution made by persistent childhood food allergy.
The project builds on tried-and-tested inter-disciplinary partnership between the Universities of Manchester, Southampton and the Amsterdam Academic Medical Centre. It integrates clinical and epidemiological research with computer science and data analytics to provide a step change in our knowledge of the true prevalence of IgE mediated food allergy, in addition to prevalence of non-IgE mediated adverse reactions to food.
Who is organising and funding the research?
The study is being funded by the Food Standards Agency and is sponsored by Manchester University NHS Foundation Trust.
The study will be taking part in the following organisations:
Isle of Wight NHS Trust
University of Southampton
University Hospital Southampton NHS Foundation Trust
University of Manchester
Manchester University NHS Foundation Trust
Amsterdam Academic Medical Centre
Contact for further information
Local Investigators: Professor Graham Roberts and Professor S. Hasan Arshad, 01983 530786
Local Research Nurse: Maria Larsson, 01983 530786