Table 1.

Baseline characteristics of patients. Values are expressed as mean ± SD

Patient age (years)	35.1 ± 4.3
Partner age (years)	39.6 ± 5.4
Duration of infertility (years)	3.3 ± 1.0
BMI (kg/m2)	23.5 ± 4.4
Antral follicle count (AFC)	15.0 ± 4.3
AMH (ng/ml)	3.9 ± 2.4
Basal (day 3) FSH (IU/l)	6.1 ± 1.3
Estradiol (LH peak + 3 days, pre-COS; pg/ml)	135.3 ± 41.2
Progesterone (LH peak + 3 days, pre-COS; ng/ml)	11.5 ± 6.4
Sperm concentration (M/ml)	41.4 ± 25.7
Sperm progressive (A+B) motility (%)	26.0 ± 13.5
Sperm normal morphology (%)	10.1 ± 7.1

BMI body mass index; AMH anti-müllerian hormone; FSH follicle-stimulating hormone