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El uso de máscaras en las escuelas y la transmisión comunitaria del COVID-19: un estudio de control sintético
Xianqun Luan1, Brian T Fisher2,1,3, Susan E Coffin2,1,3
1PolicyLab, Children's Hospital of Philadelphia.
medRxiv : the preprint server for health sciences
|August 20, 2025
Resumen
Las políticas obligatorias de uso de máscaras en las escuelas redujeron significativamente los casos comunitarios de COVID-19 después de la reapertura de las escuelas. Esta intervención de salud pública demostró su eficacia para reducir la transmisión del SARS-CoV-2 durante el período de otoño de 2021.
Área de la Ciencia:
- Salud pública
- Epidemiología
- Control de las enfermedades infecciosas
Sus antecedentes:
- Las escuelas K-12 son centros sociales críticos y potenciales impulsores de la transmisión de enfermedades.
- El impacto de las máscaras escolares obligatorias en las tasas de infección por SARS-CoV-2 en la comunidad sigue siendo poco estudiado.
- Comprender este impacto es crucial para las estrategias de salud pública durante las pandemias.
Objetivo del estudio:
- Evaluar la asociación entre las políticas escolares obligatorias de uso de máscaras y las tasas de infección por SARS-CoV-2 en la comunidad.
- Para analizar estas asociaciones durante el período de reapertura escolar del otoño de 2021 en los Estados Unidos.
- Tener en cuenta las variaciones temporales y regionales en las tasas de infección y las políticas.
Principales métodos:
- Se utilizó un diseño de estudio cuasi-experimental retrospectivo.
- Para el análisis se utilizó el método de control sintético.
- Se analizaron los datos del período de reapertura de las escuelas en el otoño de 2021 en los Estados Unidos, controlando las características básicas.
Principales resultados:
- Los condados con políticas escolares obligatorias de uso de máscaras mostraron tasas de infección por SARS-CoV-2 más bajas.
- Se observó una reducción de 1.096 casos por cada 100.000 personas en las primeras nueve semanas posteriores a la reapertura.
- Factores como las tasas de infección basal, la densidad de población y la movilidad influyeron en la asociación.
Conclusiones:
- Las políticas obligatorias de uso de máscaras en las escuelas están vinculadas a reducciones significativas en la transmisión de SARS-CoV-2 en la comunidad.
- El enmascaramiento escolar sirve como una valiosa intervención de salud pública para mitigar la propagación de enfermedades.
- Los hallazgos apoyan la implementación de políticas escolares de enmascaramiento durante las crisis de salud pública.
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