Table 1.

Positive predictive value (PPV) of the amplitude integrated EEG (aEEG) in infants with hypoxic ischaemic encephalopathy randomised to treatment with or without cooling

	DDIS (N)	Not DDIS (N)	Total (N)	PPV	95%−	95%+	p Value
aEEG voltage
Moderate suppression
Cooled	13	43	56	0.23	0.12	0.34	0.06
Not cooled	24	37	61	0.39	0.27	0.52
Severe suppression
Cooled	50	41	91	0.55	0.45	0.65	0.27
Not cooled	53	31	84	0.63	0.53	0.73
aEEG pattern
DNV
Cooled	2	26	28	0.07	0	0.17	0.07
Not cooled	6	18	24	0.25	0.08	0.42
BS/CLV/FT
Cooled	61	58	119	0.51	0.42	0.6	0.25
Not cooled	71	50	121	0.59	0.5	0.67
CLV/FT
Cooled	35	24	59	0.59	0.47	0.71	0.17
Not cooled	42	17	59	0.71	0.59	0.81

BS, burst suppression; CLV, continuous low voltage; DDIS, death or severe disability; DNV, discontinuous normal voltage; FT, flat trace; N, number of infants in group.