June 29, 2017 -- Researchers at Columbia University's Mailman School of Public Health and Albert Einstein College of Medicine studied the link between food allergy and childhood anxiety and depression among a sample of predominantly low socioeconomic status minority children. The results showed that children with a food allergy had a significantly higher prevalence of childhood anxiety. Food allergies were not associated with symptoms of childhood depression or with symptoms of anxiety or depression among their caregivers. The results are published in the Journal of Pediatrics.
Food allergies are increasingly common among youth in the U.S. with recent estimates as high as 8 percent. Until now little was known about the prevalence of food allergy in low socioeconomic ethnic minority populations.
The researchers studied 80 pediatric patients ages 4-12 years, 8 years old on average, with and without food allergy and their caregivers from urban pediatric outpatient clinics in the Bronx, New York. They controlled for an asthma diagnosis in the children, as anxiety and mood disorders are more prevalent among youth with asthma and especially more common in low socioeconomic minority children.
Among the children with a food allergy, 57 percent reported having symptoms of anxiety compared to 48 percent of children without a food allergy. Approximately 48 percent of the children had symptoms of depression with or without a food allergy.
"Management of food allergy can be expensive both in terms of food shopping, meal preparation, and the cost of epinephrine auto-injectors, which expire annually," said Renee Goodwin, PhD, in the Department of Epidemiology at the Mailman School of Public Health and lead author. "These demands could result in higher levels of anxiety for those with fewer financial resources and further heighten anxiety symptoms in children and their caregivers."
The results suggest that food allergy is particularly linked to elevated social anxiety and fear of social rejection and humiliation. "There are a number of possible explanations for the relationship found between food allergy diagnosis and increased social anxiety issues in this sample of pediatric patients," noted Dr. Goodwin. "Management of a potentially life-threatening condition may be anxiety provoking, and some children may experience increased social anxiety about being "different" from other children depending on their age and how food allergy is managed by adults in a particular setting."
The researchers also point out a possible explanation for not finding a link between food allergy and depression in children. The sample was young, and the mean age of onset for depression is significantly later than anxiety. "It would be worthwhile to examine these relationships among older adolescents and young adults with food allergy who are at the peak of risk for depression onset, especially because early anxiety is associated with increased risk for subsequent onset of depression," said Jonathan Feldman, PhD, professor at Ferkauf Graduate School of Psychology, Yeshiva University.
"With the high prevalence of food allergies today, education in schools remains a priority," said Dr. Goodwin. "Given the strong association between food allergy and social anxiety in children future investigations on the food allergy-mental health relationship are also warranted in clinical, school, and community-based settings which could aid in the development of interventions."
Co-authors: Sandra Rodgin, Rachel Goldman, and Jonathan Feldman, Ferkauf Graduate School of Psychology, Yeshiva University; Juliana Rodriguez, Department of Pediatrics, Albert Einstein College of Medicine; Gabriele deVos and Denise Serebrisky, Jacobi Medical Center, Bronx, NY.
The authors declare no conflicts of interest.
Columbia University's Mailman School of Public Health
Founded in 1922, Columbia University's Mailman School of Public Health pursues an agenda of research, education, and service to address the critical and complex public health issues affecting New Yorkers, the nation and the world. The Mailman School is the third largest recipient of NIH grants among schools of public health. Its over 450 multi-disciplinary faculty members work in more than 100 countries around the world, addressing such issues as preventing infectious and chronic diseases, environmental health, maternal and child health, health policy, climate change & health, and public health preparedness. It is a leader in public health education with over 1,300 graduate students from more than 40 nations pursuing a variety of master's and doctoral degree programs. The Mailman School is also home to numerous world-renowned research centers including ICAP and the Center for Infection and Immunity. For more information, please visit http://www.mailman.columbia.edu.
The Journal of Pediatrics