Table 3.

Predictive values of the various parameters

		Day 1	Day 2	Day 3	Day 4	Day 5	Day 6
Sensitivity	NSE	0.31	0.46	0.75	0.92	0.75	0.91
	S100	0.77	0.88	0.94	0.87	0.87	0.75
	N20 SEP	0.35					0.53
	N70 SEP	0.47					0.6
	NIHSS	0.60					0.77
	Imaging	0.78
Specificity	NSE	0.67	0.77	0.67	0.5	0.67	0.39
	S100	0.23	0.29	0.23	0.43	0.29	0.43
	N20 SEP	1.0					1.0
	N70 SEP	0.93					1.0
	NIHSS	0.70					1.0
	Imaging	0.62
Positive predictive value	NSE	0.5	0.67	0.69	0.65	0.69	0.56
	S100	0.57	0.60	0.60	0.62	0.57	0.60
	N20 SEP	1.0					1.0
	N70 SEP	0.88					1.0
	NIHSS	0.80					1.0
	Imaging	0.74
Negative predictive value	NSE	0.47	0.59	0.73	0.86	0.73	0.83
	S100	0.43	0.67	0.75	0.75	0.67	0.60
	N20 SEP	0.56					0.70
	N70 SEP	0.62					0.70
	NIHSS	0.47					0.77
	Imaging	0.67

NSE, neuron-specific enolase; S100, S100 protein.