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Time trends in Australian hospital anaphylaxis admissions in 1998-1999 to 2011-2012

Raymond James Mullins1, Keith B G Dear2, Mimi L K Tang3

  • 1John James Medical Centre, Deakin, Canberra, Australia; Medical School, Australian National University Canberra, Canberra, Australia; Health Sciences, University of Canberra, Bruce, Canberra, Australia.

The Journal of Allergy and Clinical Immunology
|July 19, 2015
PubMed

Insights

Childhood food allergy and anaphylaxis admissions continue to rise, with significant increases observed in all age groups. The data suggests an accelerating trend, particularly in school-aged children, indicating a growing public health concern.

Area of Science:

  • Pediatric Allergy and Immunology
  • Public Health Surveillance
  • Epidemiology of Allergic Diseases

Background:

  • Previous studies indicated rising childhood food allergy and anaphylaxis rates in the UK, US, and Australia post-1990.
  • The prevalence of food allergy and severe allergic reactions in children has been a growing concern globally.

Purpose of the Study:

  • To investigate the continued trend of childhood food allergy and anaphylaxis prevalence since 2004-2005.
  • To update the understanding of anaphylaxis admission rates in various age demographics.

Main Methods:

  • Analysis of hospital admission data for anaphylaxis between 2005-2006 and 2011-2012.
  • Comparison of recent admission rates with historical data from 1998-1999 to 2004-2005.

Main Results:

  • Food-related anaphylaxis admission rates increased by 1.5-fold overall between 2005-2006 and 2011-2012.
  • The 5-14 year age group showed the largest proportionate increase (2.1-fold), while the 0-4 year group maintained the highest rates.
  • A statistically significant increase in the year-on-year rate of anaphylaxis admissions was observed over time.

Conclusions:

  • Food-related anaphylaxis has continued to increase across all age demographics since 2004-2005.
  • While young children (0-4 years) bear the highest burden, there's evidence of accelerated incidence in school-aged children (5-14 years).
  • Findings suggest a potential rise in anaphylaxis cases among adolescents and adults, a group at higher risk for fatal outcomes.
Abstract

Keywords:
Food allergyanaphylaxisepidemiology

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