ArticleScientific reports2026
Effects of climate and air pollution on rates of hospitalization for affective mood disorders in southern Brazil.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Climate change and air pollution are two of the most pressing global challenges, increasingly recognized for their implications on health. Thus, we aimed to explore the associations between climate, air pollution and monthly hospitalization to Affective Mood Disorders (AMD). Clinical data were collected from the Hospital Morbidity System of the Unified Health System (SUS) for the city of Porto Alegre, Brazil, from 2013 to 2023. Climate and air pollution data were obtained from the ERA5 and the CAMS Global Reanalysis. We use machine learning algorithms, conduct Structural Equation Modeling (SEM), and use Generalized Additive Models to detect the most important variable and to test direct and indirect effects. Insolation (in hours), visibility, and temperature from 15[Formula: see text]C to 25[Formula: see text]C, proxies for good weather conditions, decrease the values in monthly hospitalization rates for AMD. Also, when the values of the total column of methane (above 0.00955), ozone (above 0.0008) and PM[Formula: see text] increase (proxies for air pollution), the AMD rate also increases. Our findings highlight that climate, together with air pollution as a potential predictor of psychiatric admissions, particularly in populations exposed to reduced air quality or extreme weather conditions.
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