Table 4

Causes of death

Study group	Gestation	Birth weight (g)	Cause of death	Age at death (days)
Gestation is given as completed weeks.
Group 1, no significant PDA; group 2, significant PDA which closed after medical treatment; group 3, significant PDA remaining patent after medical treatment; CLD, chronic lung disease; IVH, intraventricular haemorrhage; NEC, necrotising enterocolitis; PDA, patent ductus arteriosus; HMD, hyaline membrane disease; PIE, pulmonary interstitial emphysema; DIC, disseminated intravascular coagulation; total parenteral; PPHN, persistent pulmonary hypertension of the newborn.
Group 1 (n = 6)	24	645	Grade 4 IVH	9
	27	1225	Multiorgan failure, bilateral subdural haemorrhage	5
	25	785	Sepsis	306
	23	535	HMD, PIE, extreme prematurity	4
	26	735	Respiratory failure secondary to pulmonary hypoplasia	150
	28	1150	NEC and cerebral ischaemia	36
Group 2 (n = 7)	28	1190	Gram negative septicaemia	10
	23	650	Candida septicaemia with DIC	18
	25	835	Cardiac tamponade secondary to TPN effusion	55
	23	665	Pneumonia and CLD	14
	25	890	Perforated NEC	10
	23	670	Perforated NEC with peritonitis	13
	25	410	Perforated NEC with multiorgan failure	12
Group 3 (n = 11)	23	640	Grade 4 IVH	27
	23	490	Overwhelming sepsis and cardiac failure	17
	23	570	Systemic candidiasis	23
	23	700	Pneumonia, extreme prematurity	28
	25	550	PPHN and severe PIE	12
	23	505	Pulmonary haemorrhage	6
	23	645	NEC, prematurity	5
	25	620	Perforated NEC with multiorgan failure	33
	24	740	Perforated NEC	37
	27	410	Perforated NEC with multiorgan failure	41
	27	1095	HMD and pneumothoraces	9