Time-Series Analysis of the Association Between Daily Outpatient Visits for Adult Atopic Dermatitis and Air Pollution in Beijing.

Background

Few studies have examined the potential impact of air pollutants on atopic dermatitis (AD) in adults.

Objective

This study aims to assess the relationship between atmospheric pollutants and the frequency of daily outpatient visits for AD in adults in Beijing.

Methods

Data from Xiyuan Hospital were analyzed to assess the relationship between atmospheric pollutants and the frequency of daily outpatient visits for AD in adults in Beijing.

Results

For individuals aged 41-60 years, a 10 μg/m3 increase in particulate matter (PM)2.5, PM10, nitrogen dioxide (NO2), sulfur dioxide (SO2), and ozone (O3) corresponded to a 0.3-2.9 increase, while a 10 mg/m3 increase in carbon monoxide (CO) was associated with a 3.4 increase (odds ratio [OR] = 1.034; 95% confidence interval [CI]: 1.014-1.054). Among individuals aged ≥60 years, a positive association with all pollutants was observed, particularly CO, presenting the strongest link to outpatient visits on day 6 (OR = 1.024; 95% CI: 1.003-1.044). Adult female patients with AD exhibited heightened susceptibility to air pollution, as evidenced by the positive correlations between the concentrations of PM2.5, PM10, SO2, CO, NO2, and O3 and the frequency of female outpatient visits.

Conclusion

These findings highlight the positive relationship between air pollution and outpatient visits in adult patients with AD.