Table 4. Total number patients with two or more positive SRA results (Risk 1) in Groups I and II in the initial three hours of recording.

Exam		Group I		Group II		Total
SRA (≥ 2+)		19		15		34
SRA (< 2+)		12		66		78
Total		31		81		112
Sens	Esp		VP+		VP-		Accuracy
61.3%	81.4%		55.8%		84.6%		75.9%