Predictive models of recurrent implantation failure in patients receiving ART treatment based on clinical features and routine laboratory data

Table 5 General data on the first assisted reproduction cycle in patients with RIF

	Live birth subgroup (n = 116)	No live birth subgroup (n = 200)	t/X²	P value
Age (years)	33.09 ± 5.14	35.41 ± 6.16	-2.930	0.004
BMI (kg/m²)	22.63 ± 2.90	22.89 ± 2.64	-0.654	0.514
Ovarian hyperstimulation/Endometrial preparation protocols	33	120	1.086	0.909
Fresh cycle	14	55
Long protocol	2	6
Super long protocol	6	20
Modified super long protocol	6	24
Antagonist protocol	6	15	0.445	0.8
Microstimulation protocol Frozen-thawed cycle	83 7	80 8
Natural cycle Hormone therapy cycle	60 16	54 18
Ovulation induction cycle
Endometrial thickness on the day of HCG administration (mm)	10.02 ± 1.68	9.43 ± 2.23	2.153	0.033
No. of embryos transferred			4.541	0.039
1 2	51 65	64 136
Type of embryos transferred			13.181	0.000
Cleavage embryo	62	147
Blastocyst	54	53

The data are presented as the mean ± SD or % (n). The data were analysed by ANOVA or the chi-square test and Fisher’s exact test. BMI, body mass index.

ISSN: 1477-7827