Table 2: Associated presenting features* among the 420 patients.

Clinical features at presentationFrequencyPercentage (%)

Lethargy 133.1
Cyanosis174.0
Convulsion235.5
Inability to suck/feed286.7
Features of heart failure5312.6
Head nodding8119.3
Vomiting8219.5
Diarrhoea8420.0
Grunting12630.0

Some patients had multiple features at presentation.