Table 2.

Odds ratios of four groups in cryopreserved embryo transfer.

Items	p	OR	95%CI
			Upper	Lower
EPR	p1 = 0.258	0.456	0.113	1.836
	p2 = 0.137	0.986	0.975	0.997
	p3 = 0.314	0.994	0.987	1.001
	p4 = 0.198	0.994	0.987	1.001
DR	p1 = 0.526	1.088	0.838	1.412
	p2 = 0.391	0.853	0.592	1.227
	p3 = 0.683	0.928	0.647	1.330
	p4 = 0.747	0.951	0.703	1.288
CPR	p1 = 0.629	1.069	0.816	1.400
	p2 = 0.994	1.001	0.688	1.457
	p3 = 0.720	1.070	0.738	1.552
	p4 = 0.470	1.122	0.821	1.533
MR	p1 = 0.939	1.018	0.643	1.612
	p2 = 0.219	1.595	0.753	3.379
	p3 = 0.197	1.624	0.772	3.416
	p4 = 0.006*	2.718*	1.301	5.677
IR	p1 = 0.620	1.053	0.858	1.292
	p2 = 0.489	0.905	0.682	1.201
	p3 = 0.738	0.953	0.719	1.263
	p4 = 0.940	1.009	0.795	1.282
OPR	p1 = 0.437	1.110	0.854	1.443
	p2 = 0.718	0.935	0.648	1.348
	p3 = 0.842	1.037	0.722	1.491
	p4 = 0.651	0.931	0.685	1.267

* Statistical significance.

CI = confidence interval; CPR = clinical pregnancy rate; DR = delivery rate; EPR = ectopic pregnancy rate; IR = implantation rate; MR = miscarriage rate; OPR = ongoing pregnancy rate; OR = odds ratio; p₁ = Group 1 vs. Group 3; p₂ = Group 3 vs. Group 4; p₃ = Group 1 vs. Group 4; p₄ = Group 1 vs. Group2.