Risk Factors for Acute Urticaria in Central California

Area of Science:

• Epidemiology
• Environmental Health

Background:

• Urticaria affects 15-20% globally, with allergy triggers implicated.
• Demographic and environmental risk factors for acute urticaria remain under-researched.

Purpose of the Study:

• To investigate demographic and environmental risk factors for acute urticaria in California's San Joaquin Valley.
• To identify specific socioeconomic and environmental parameters associated with acute urticaria occurrence.

Main Methods:

• Utilized emergency department data for acute urticaria visits (2016-2017) across 201 zip codes.
• Incorporated census data for population at risk and CalEnviroScreen data for socioeconomic and environmental factors.
• Employed multivariate Poisson analysis to assess risk factors.

Main Results:

• The incidence rate of acute urticaria was 1.56 per 1000 persons in the San Joaquin Valley.
• High population density (RR=2.81), high percentage of farm workers (RR=1.49), and combined high/medium poverty and non-white residency (RR=1.59) significantly increased acute urticaria likelihood.
• Identified specific risk factors associated with increased acute urticaria occurrence.

Conclusions:

• High population density, farm work, poverty, and minority status are linked to a higher risk of acute urticaria.
• Findings suggest a correlation between socioeconomic and environmental conditions and acute urticaria prevalence.