Table 5.

The average concentration of beta-hCG in different implantation rate group^a

Implantation rate		beta-hCG (mIU/ml)	P value
Day 3	0 % (n = 27)	0.40 [0.36, 0.44]	<0.001b
	33.3 % (n = 6)	0.45 [0.31, 0.59]
	50.0 % (n = 4)	0.48 [0.37, 0.58]
	66.7 % (n = 3)	0.57 [0.28, 0.87]
	100.0 % (n = 4)	0.89 [0.65, 1.63]
Day 5	0 % (n = 18)	1.32 [1.03, 1.61]	0.046c
	33.3 % (n = 2)	1.81 [1.27, 3.49]
	50.0 % (n = 4)	1.76 [1.43, 2.08]
	66.7 % (n = 4)	1.81 [1.33, 2.29]
	100.0 % (n = 5)	2.20 [1.14, 3.27]

^aThe data were expressed as mean and 95%CI

^bThe average concentration of beta-hCG in day3 samples differed significantly between group 0 % and 100 %, 33.3 % and 100 %, so as 50 % and 100 % when Bonferroni test was employed

^cThe average concentration of beta-hCG in day5 samples differed significantly between group 0 % and 100 % when Bonferroni test was employed