Table 1.

Characteristics of neonates, n=214*

	Median (IQR)*
Gestational age at delivery (weeks)	40 (39–41)
Birth weight (g)	3435 (3110–3803)
Sex: n (%)
Male	137 (64.0)
Female	77 (36.0)
Apgar score at 5 min (n=209)	5 (3–8)
Requirement for EEG monitoring: n (%)
HIE	107 (50.0)
Clinician request	67 (31.3)
Stroke	7 (3.3)
Infectious	4 (1.9)
Metabolic	3 (1.4)
Other	26 (12.1)
Baby developed HIE: n (%)
Yes	141 (65.9)
No	73 (34.1)
Clinical Sarnat score at 24 hours (n=132): n (%)
Mild	51 (38.6)
Moderate	57 (43.2)
Severe	24 (18.2)
Therapeutic hypothermia: n (%)
Cooled	106 (49.5)
Uncooled	108 (50.5)
Final diagnosis: n (%)
HIE grade
Mild	50 (23.4)
Moderate†	59 (27.6)
Severe	24 (11.2)
Metabolic/genetic disorder‡	20 (9.3)
Stroke§	18 (8.4)
Suspected seizures—unconfirmed	12 (5.6)
Perinatal asphyxia without clinical encephalopathy	7 (3.3)
Sepsis/meningitis	6 (2.8)
Intracranial haemorrhage	5 (2.3)
Other¶	13 (6.1)

*Unless otherwise stated.

†n=1 had meningitis also.

‡n=1 had severe HIE also.

§n=2 had mild HIE and n=3 had moderate HIE also.

¶n=3 for postnatal cardiorespiratory arrest (n=1 with mild HIE also, n=1 with severe HIE also); n=2  for   each of: neonatal drug withdrawal syndrome; respiratory distress; seizures of unknown origin; n=1 for each of: congenital anaemia; congenital  brain malformation; meconium aspiration syndrome; tracheo-oesphageal atresia and cystic periventricular leukomalacia  periventricular leukomalacia.

EEG, electroencephalography; HIE, hypoxic-ischaemic encephalopathy.