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Air pollution linked to increased emergency visits for ear infections in children

Acute otitis media Acute otitis media
Acute otitis media Acute otitis media

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Children may experience a higher likelihood of emergency visits for acute otitis media following short-term exposure to air pollution.

In a case-crossover study conducted in China, researchers have unveiled compelling evidence of a direct link between air pollution and pediatric emergency visits for acute otitis media (AOM).

This comprehensive study spanned three years analyzing outpatient medical records from nine main urban districts. The research focused on the impact of various air pollutants, including the air quality index (AQI), particulate matter ≤ 10 μm (PM10), PM2.5, SO2, CO, NO2, and O3, collected from seventeen monitoring sites.

Meteorological factors were collected as potential confounding variables. The data underwent analysis using conditional logistic regression, employing stratified analyses, multi-pollutant models, and single-pollutant models. Rise in AQI, PM10, PM2.5, SO2, CO, and NO2 showed positive associations with emergency visits for AOM in children, both in single-pollutant models and stratified assessment. Elevated levels of PM10, SO2, CO, and NO2 were also positively linked to emergency visits related to ear infections in multi-pollutant models.

Notably, NO2 exhibited the most statistically significant odds ratio (OR) values across all models, while O3 effects were significant only in seasonal stratification. In single-pollutant models, the optimal lag periods for air pollution variables, excluding O3, were recognized as lag 0-7. The largest OR values were witnessed for SO2 at 1.185 (95%CI: 1.129-1.245) in single-pollutant models. In stratified analyses based on gender and age, no differences were witnessed between groups in statistically significant OR values.

But, seasonal variations in OR values for PM10, SO2, CO, NO2, and O3 were noticeably significant. Children aged 0 years and 3-5 years emerged as the most vulnerable population, with heightened susceptibility observed during winter and spring. These findings underscore the importance of understanding pollutant-specific impacts and seasonal variations to develop targeted interventions for pediatric respiratory health. This groundbreaking study adds to the growing body of evidence linking air pollution to various health issues, reinforcing the global imperative to address and combat the detrimental effects of poor air quality on health.

Source:

Frontiers in Public Health

Article:

Effects of air pollution on emergency visits for acute otitis media among children: a case-crossover study in Chongqing, China

Authors:

Ling Xiao et al.

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