Table 3.

The ordinal logistic regression for fertilization disorders: the clinical model.

		β	SE	t	P	OR (95%CI)
Female age (y)
	< 35	Ref				1.00
	≥ 35	0.072	0.029	2.507	0.012	1.10 (1.04-1.17)
Male age (y)
	< 45	Ref				1.00
	≥ 45	0.170	0.051	3.329	0.001	1.18 (1.07-1.31)
Female BMI (kg/m2)
	18.5-24	Ref				1.00
	< 18.5	0.001	0.048	0.006	0.995	1.05 (0.95-1.15)
	24.0-28.0	0.067	0.031	2.181	0.029	1.06 (1.00-1.12)
	≥ 28	0.074	0.047	1.560	0.119	1.09 (1.00-1.19)
Types of Infertility
	Secondary	Ref				1.00
	Primary	0.319	0.027	11.957	0.000	1.34 (1.27-1.41)
Uterine disorders
	No	Ref				1.00
	Yes	0.015	0.046	0.334	0.738	1.02 (0.93-1.11)
Ovulatory disorder
	No	Ref				1.00
	Yes	-0.123	0.040	-3.151	0.002	0.90 (0.83-0.98)
Diminished ovarian function
	No	Ref				1.00
	Yes	0.192	0.040	4.801	0.000	1.20 (1.11-1.30)
Sperm quality
	Normal	Ref				1.00
	O/A	0.053	0.027	1.945	0.052	1.02 (0.97-1.08)
	Severe O/A	0.233	0.080	2.905	0.004	1.31 (1.12-1.52)
	Azoospermia	0.126	0.060	2.094	0.036	1.20 (1.07-1.34)
ART failure history
	No	Ref				1.00
	Yes	0.081	0.027	3.057	0.002	1.07 (1.01-1.13)
Ovulation induction protocol
	Stimulation	Ref				1.00
	Minimal-stimulation	0.229	0.053	4.303	0.000	1.33 (1.20-1.47)
	Natural	0.828	0.128	6.474	0.000	2.03 (1.57-2.60)
Number of retrieved oocytes
	≥ 20	Ref				1.00
	5-20	0.309	0.040	7.271	0.000	1.34 (1.24-1.44)
	< 5	1.092	0.050	21.305	0.000	2.88 (2.71-3.29)
Insemination method
	ICSI	Ref				1.00
	IVF	0.680	0.030	22.516	0.000	1.97 (1.85-2.09)
Control|LFR		3.429	0.050	68.378	0.000
LFR|TFF		4.094	0.051	79.548	0.000