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Indicadores objetivos de tabaquismo pasivo y morbilidad respiratoria en niños pequeños
C G Bakoula1, Y J Kafritsa, G D Kavadias
1First Department of Paediatrics, Athens University, Greece.
Lancet (London, England)
|July 29, 1995
Resumen
La exposición ambiental al humo del tabaco aumenta significativamente las enfermedades respiratorias en los niños pequeños. Las mediciones objetivas de cotinina urinaria confirmaron este vínculo, destacando la necesidad de entornos libres de humo para la salud infantil.
Área de la Ciencia:
- La pediatría es la medicina de los niños.
- Salud Ambiental Salud del medio ambiente.
- Salud Pública La salud pública.
Sus antecedentes:
- La exposición al humo ambiental del tabaco (ETS) es un factor de riesgo conocido para problemas respiratorios infantiles.
- La evaluación objetiva de la exposición a ETS utilizando biomarcadores como la cotinina urinaria es menos común en los estudios pediátricos.
- Comprender la relación precisa entre ETS y la morbilidad respiratoria en niños pequeños es crucial para las intervenciones de salud pública.
Objetivo del estudio:
- Evaluar objetivamente la asociación entre la exposición ambiental al humo del tabaco y la morbilidad respiratoria en niños de 1 a 5 años.
- Para utilizar los niveles de cotinina urinaria como un biomarcador para cuantificar la exposición a ETS.
- Determinar la mayor probabilidad de enfermedad respiratoria en niños expuestos a ETS en comparación con niños no expuestos.
Principales métodos:
- Se estudió una cohorte de 501 niños de entre 1 y 5 años que asistían a una clínica ambulatoria.
- Se midieron los niveles de cotinina en orina para clasificar a los niños como expuestos o no expuestos a ETS (marco de corte: 10 ng de cotinina / mg de creatinina).
- La morbilidad respiratoria se definió como tres o más episodios en los 12 meses anteriores; se hicieron ajustes estadísticos para factores de confusión.
Principales resultados:
- Los niños expuestos al humo ambiental del tabaco tenían 3,5 veces más probabilidades de experimentar una mayor morbilidad respiratoria.
- La asociación se mantuvo significativa después de ajustar por posibles factores de confusión (95% IC 1.56-7.90, p < 0.0024).
- La medición objetiva de la cotinina proporcionó un indicador confiable de la exposición al ETS y su impacto en la salud.
Conclusiones:
- La medición objetiva de la cotinina urinaria confirma una asociación significativa entre la exposición ambiental al humo del tabaco y el aumento de la morbilidad respiratoria en niños pequeños.
- Estos hallazgos subrayan la importancia de reducir la exposición a ETS para prevenir enfermedades respiratorias en poblaciones pediátricas.
- Las estrategias de salud pública deben centrarse en la creación de entornos libres de humo para proteger la salud respiratoria de los niños.
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