Effect of intrauterine perfusion of granular leukocyte-colony stimulating factor on the outcome of frozen embryo transfer

Table 3 Baseline patient features and pregnancy outcomes in cycles with blastula transplantation after propensity score matching based on age and blastula/cleavage stage embryo ratio

Characteristics (blastula)	G-CSF group (n = 35)	Non-G-CSF group (n = 35)	P value
Age (yr), mean ± SD	31.26 ± 4.80	31.71 ± 4.46	0.686
BMI (kg/cm2), mean ± SD	21.93 ± 2.41	21.01 ± 2.65	0.133
Average infertility years (yr), mean ± SD	4.68 ± 1.91	4.80 ± 1.98	0.797
Primary infertility cycle, n (%)	13 (37.14)	16 (45.71)	0.467
Secondary infertility cycle, n (%)	22(72.86)	19(54.29)
Average endometrial thickness (mm), mean ± SD	7.10 ± 0.53	7.07 ± 0.54	0.815
Cycle with one transplanted embryo, n (%)	16 (45.71)	14 (40.00)	0.233
Cycle with two transplanted embryos, n (%)	19 (54.29)	21 (60.00)
Clinical pregnancy rate, %	68.57 (24/35)	57.14 (20/35)	0.322
Embryo implantation rate, %	57.41 (31/54)	44.64 (25/56)	0.181
Ectopic pregnancy rate, %	4.17 (1/24)	0 (0/20)	> 0.9991
Early abortion rate, %	20.83 (5/24)	22.50 (5/20)	0.9742

¹Fisher’s exact test.

²Corrective Chi-square test. G-CSF: Granular leukocyte-colony stimulating factor; BMI: body mass index.