Table 2. Primary diagnoses among pediatric heart failure-related in-hospital deaths according to different age groups.

Age (years)	Primary diagnoses	n	%
Less than 2	Hypoplastic left heart syndrome	21	3.65
	Respiratory failure of newborn	16	2.7
	Double outlet right ventricle	15	2.51
2 - 12	Sepsis, unspecified organism	14	8
	Acute on chronic systolic heart failure	9	5.19
	Acute on chronic combined systolic and diastolic HF	8	4.54
	Hypoplastic left heart syndrome	8	4.51
13 - 20	Sepsis, unspecified organism	28	11.59
	Acute on chronic systolic heart failure	10	3.99
	Acute respiratory failure	9	3.79