Ambient Air Pollution and Asthma-Coded Hospital Admission Rates in Children Aged 0–3 Years in Spain: A Municipality-Year Urban–Rural Ecological Study
Background/Objectives: Asthma-coded hospital admissions in very young children represent a clinically relevant but diagnostically complex marker of severe wheezing/asthma-like morbidity. Methods: We conducted a nationwide ecological municipality-year study of children aged 0–3 years in Spain during 2020–2022 using hosp...