Table 5.

The ordinal logistic regression for fertilization disorders: a laboratory model.

		β	SE	t	P	OR (95%CI)
Female age (y)
	< 35	Ref				1.00
	≥ 35	0.039	0.065	0.607	0.544	1.04 (0.92-1.18)
Male age (y)
	< 45	Ref				1.00
	≥ 45	0.110	0.106	1.035	0.301	1.12 (0.90-1.37)
Types of Infertility
	Secondary	Ref				1.00
	Primary	0.264	0.059	4.496	0.000	1.30 (1.16-1.46)
Sperm quality
	Normal	Ref				1.00
	O/A	-0.028	0.060	-0.470	0.638	0.97 (0.86-1.09)
	Severe O/A	0.092	0.214	0.430	0.667	1.10 (0.70-1.64)
	Azoospermia	0.322	0.114	2.808	0.005	1.38 (1.10-1.72)
Diminished ovarian function Diminished ovarian function
	No	Ref				1.00
	Yes	0.192	0.040	4.801	0.000	1.20 (1.11-1.30)
ART failure history
	No	Ref				1.00
	Yes	0.111	0.058	1.921	0.050	1.12 (1.01-1.25)
Ovulating induction protocol
	Stimulation cycle	Ref				1.00
	Minimal-stimulation cycle	0.390	0.102	3.807	0.000	1.48 (1.21-1.80)
	Natural cycle	0.737	0.232	3.182	0.001	2.09 (1.30-3.23)
Number of retrieved oocytes
	>20	Ref				1.00
	5-20	0.434	0.105	4.152	0.000	1.54 (1.26-1.90)
	<5	1.077	0.128	8.434	0.000	2.94 (2.29-3.78)
Insemination methods
	ICSI	Ref				1.00
	IVF	0.354	0.064	5.524	0.000	1.43 (1.26-1.62)
FSH (mIU/mL)
	<2.8	Ref				1.00
	2.8-11.3	-0.132	0.069	-1.897	0.058	0.88 (0.77-1.01)
	>11.3	0.071	0.115	0.618	0.537	1.07 (0.86-1.34)
AMH (ng/mL)
	>5	Ref				1.00
	1.1-5	0.172	0.086	2.008	0.045	1.19 (1.01-1.41)
	<1.1	0.272	0.109	2.491	0.013	1.31 (1.06-1.63)
Control|LFR		3.164	0.133	23.763	0.000
LFR|TFF		3.841	0.136	28.342	0.000