Table 1.

The background of patients and ART outcomes of all patients

Number of patients	514
Number of stimulated cycles	514
Age (years) a	37.9 ± 0.3
Previous ART attempts (times) a	1.4 ± 0.1
Percentage of nulliparous patients (%)	54%
Basal hormone levels b
Estradiol (pg/ml)	58.6
LH (IU/L)	4.4
FSH (IU/L)	10.5
Percentage of ICSI patients (%)	43.5%
Number of retrieved oocytes a	5.6 ± 0.2
Fertilization rate (%)	74.1%
Cleavage rate (%)	91.2%
Number of usable embryos a	2.7 ± 0.2
Number of ET cycles	398
Number of transferred embryos a	1.5 ± 0.2

^aValues were mean ± SEM

^bBasal hormonal values were measured between the 2nd and 4th days of their menstrual cycles