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Food Allergy Outcomes Related to White and African American Racial Differences (forward)

Investigators
Gupta, Ruchi S
Institutions
Northwestern University
Start date
2017
End date
2022
Objective
Food allergy (FA) is a potentially life-threatening condition that affects an estimated 8% ofchildren in the United States. Although differences between African American (AA) and White children in theprevalence and severity of other atopic conditions such as asthma and eczema have been well described, littleis known about such differences in FA. The limited existing literature indicates that AA children may haveworse clinical outcomes, including rates of FA-related fatal anaphylaxis and FA-related emergency department(ED) visits, than their White peers. Phenotypic and endotypic differences, including rates of sensitization andco-morbidities, between AA and White children are beginning to be examined. Data on racial differences in FAmanagement practices are incomplete; preliminary data suggest that AA families spend significantly less onallergen-free foods and FA medications than do White families. Families caring for children with FA experiencesignificant impairments in psychosocial outcomes, including FA-related quality of life (FAQoL); however, thesedata come primarily from White, privately insured families, and little is known about psychosocial outcomes inAA families. Two recent reviews concluded that existing studies examining racial disparities in FA are far toomethodologically limited to draw definitive conclusions, primarily due to reliance on self-report of FA diagnosisand cross-sectional designs.Specific Aims and Methods: Our goal is to prospectively study a cohort of 600 AA and White children (0-12years) with FA in order to: 1) Determine variability in clinical FA outcomes between AA and White patientsvia bimonthly remote assessments, biannual clinic visits, and medical chart review over a two-year period; 2)Examine phenotypic and endotypic differences between AA and White children with FA using specificlaboratory specimen collection techniques and assays; 3) Identify differences between AA and Whitechildren in FA management practices by parent report (e.g. allergen avoidance and epinephrine carriage);and 4) Determine differences between AA and White children in psychosocial FA-related outcomes(e.g., FA-related quality of life, bullying, anxiety, and worry) via the above survey methods.Hypotheses and Expected Results: We hypothesize that compared to White children, AA children will: havehigher rates of food-allergic reactions and FA-related healthcare utilization; demonstrate unique FAphenotypes and endotypes; have poorer knowledge of FA management and worse adherence to preventativebehaviors; have limited access to medications and allergen-free foods; and report better quality of life.Significance and Effects on Other Research: Confirming and further characterizing differencesbetween AA and White children with FA will provide the data required to develop clinical guidelines,optimize treatment, and build health policies that meet the needs of both AA and White children.
Funding Source
Nat'l. Inst. of Allergy and Infectious Diseases
Project source
View this project
Project number
1R01AI130348-01A1
Categories
Food Allergens
Policy and Planning