Table 2 Univariate and multivariate analysis the live-birth rate per embryo transferred cycle according to the baseline luteinizing hormone/follicle stimulating hormone ratio.

	Univariate analysis		Multivariate analysis
	OR (95%CI)	P	OR (95%CI)	P
Age (years)	0.99 (0.91, 1.07)	0.794	1.01 (0.91, 1.11)	0.864
BMI (kg/m2)	0.97 (0.89, 1.06)	0.541	0.96 (0.85, 1.08)	0.482
bAMH (ng/mL)	1.00 (0.93, 1.07)	0.940
AFC	1.04 (0.97, 1.11)	0.234
bLH/FSH^a	0.95 (0.91, 1.00)	0.042	0.96 (0.90, 1.01)	0.144
bFSH	1.20 (0.98, 1.46)	0.074	1.23 (0.95, 1.60)	0.121
bLH	0.96 (0.9, 1.02)	0.197
bT (ng/mL)	0.19 (0.03, 1.38)	0.102
Androstenedione (nmol/L)	0.96 (0.87, 1.06)	0.468
DHEAS (ug/dL)	1.00 (1.00, 1.00)	0.443
SHBG (nmol/L)	1.00 (0.99, 1.00)	0.423
FAI	0.97 (0.81, 1.16)	0.734
HOMA index	1.2 (0.86, 1.67)	0.278
TC (mmol/L)	0.90 (0.70, 1.16)	0.423
UA (umol/L)	1.00 (0.99, 1.00)	0.478
sE2 (pg/mL)	0.99 (0.97, 1)	0.151
sP4 (ng/mL)^a	0.81 (0.70, 0.94)	0.006	0.79 (0.67, 0.92)	0.003
Started gonadotropin dose (ampoule)	1.00 (0.99, 1.00)	0.583
Total dose of gonadotrophins (ampoule)	1.00 (0.99, 1.01)	0.691
tE2 (pg/mL)	1.00 (1.00, 1.00)	0.192
NOR	0.97 (0.91, 1.03)	0.305
Endometrial thickness on transfer day (mm)	1.19 (1.03, 1.37)	0.020	1.25 (1.04, 1.49)	0.016
Embryo age on transfer day (d)	1.12 (0.62, 2.03)	0.715
Number of embyro transfer	0.91 (0.23, 3.5)	0.887

BMI Body Mass Index, bAMH Anti-Müllerian facto, AFC antral follicle count, bLH/FSH baseline luteinizing hormone/follicle stimulating hormone, bFSH baseline follicle stimulating hormone, bLH baseline luteinizing hormone, bT baseline testosterone, DHEAS Dehydroepiandrosterone sulfate, SHBG Sex hormone binding globulin, FAI Free androgen index, TC triglycerides, UA uric acid, sE2 estradiol on started day, sP4 progesterone on started day, tE2 estradiol on triger day, NOR Number of oocytes retrieved. OR odds ratio, CI confidence interval.
^aper change 0.1 unit.

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