The Downes score grades the severity of respiratory distress in infants and young children, commonly used to help decide whether escalating respiratory support is needed.
Mild distress.
Moderate distress.
Severe — impending respiratory failure.
They overlap conceptually, but Downes is more commonly applied to slightly older infants and children with conditions like bronchiolitis, while Silverman-Andersen is specifically a newborn/neonatal tool.
3 or below is mild, 4–6 is moderate, and 7 or above is severe — often signalling impending respiratory failure and the need to escalate support.
It scores the maximum and suggests a significant oxygenation problem that supplemental oxygen alone isn't correcting, warranting escalation.
No — it's used alongside clinical judgment and the overall trajectory to guide when to escalate respiratory support.