Table II.

Comparison of serum β-HCG level between tubal and intrauterine pregnancy group.

		β-HCG (U/l)
Group	No.	On admission	48 h	t	P-value
Tubal pregnancy group	55	776±109	758±111	0.707	0.415
Intrauterine pregnancy group	55	5,598±187	10,997±1,798	19.898	0.008
t		150.166	45.733
P-value		<0.001	<0.001

β-HCG, β-human chorionic gonadotropin.