Intrauterine administration of human chorionic gonadotropin does not improve pregnancy and life birth rates independently of blastocyst quality: a randomised prospective study

Table 1 Patients’ characteristics of cohort A: hCG administration on day three

Characteristics	hCG (n = 89)	culture medium (n = 93)	P-Value
Female age (years) mean ± s.d. (range)	36.1 ± 4.1 (22–43)	35.5 ± 5.0 (25–43)	0.365
BMI (kg/m²) mean ± s.d.	23.0 ± 3.0	23.6 ± 4.2	0.383
No. MII oocytes/ OPU mean ± s.d.	9.2 ± 5.0	9.0 ± 5.2	0.796
Type of Infertility (%)
-Primary Infertility	50 (56.2 %)	42 (45.2 %)	0.137
-Secondary Infertility	39 (43.8 %)	51 (54.8 %)	0.137
Cause of Infertility (%)
-Female factor	19 (21.4 %)	29 (31.3 %)	0.168
-Male factor	38 (42.3 %)	27 (29.0 %)
-Mixed	25 (28.1 %)	32 (34.4 %)
-Idiopathic	7 (7.9 %)	5 (5.4 %)

Ranges or percentages respectively are given in brackets, MII oocytes: Metaphase II oocytes; OPU = ovum pick-up; s.d.: standard deviation
Baseline characteristics of IVF patients receiving either 40 μl of hCG (500 IU) dissolved in embryo culture medium or plain culture medium (control group) 2 days before transfer. Primary infertility was defined as the inability to become pregnant or the inability to carry a pregnancy to a live birth. Secondary infertility was defined as the inability to become pregnant or the inability to carry a pregnancy to a live birth following either a previous pregnancy or a previous ability to carry a pregnancy to a live birth

ISSN: 1477-7827