Table 1 Cycle characteristics of patients

Cycles, n

13,657

1956

 Female age, year

30 [28-33]

31 [29-34]

 Male age, year

32 [29-35]

32 [30–36]

GnRH analogues

 Agonist

12,118(88.7)

1605(82.1)

 Non-agonist

1539(11.3)

351(17.9)

Insemination protocol

 IVF

9948(72.8)

1450(74.1)

 ICSI

3709(27.2)

506(25.9)

 TESA/PESA + ICSI

643(4.7)

72(3.7)

 Female height, cm

158 [155–162]

158 [155–162]

 Female weight, kg

53 [48–57]

53 [49–57]

 Female BMI, kg/m2

21 [19.4–22.6]

21.33 [19.78–22.77]

 Female basal FSH, IU/l

6.71 [5.76–7.88]

7.68 [6.4325–9.17]

 Female basal LH, IU/l

4.41 [3.29–5.9]

4.55 [3.4–6.25]

 Female basal PRL, ng/ml

13.83 [10.03–19.11]

14.74 [10.8725–20.6175]

 Female basal E2, pg/ml

41 [30–55]

42 [31–57]

 Female basal T, ng/ml

0.42 [0.3–0.56]

0.42 [0.3–0.55]

 Basal AFC

11 [8-15]

10 [7-15]

 Gonadotropin dose, IU

2250 [1800–2700]

2250 [1800–2700]

 Gonadotropin duration, IU

12 [10-13]

12 [10-13]

 HMG dose, IU

1987.5 [937.5–2475]

1950 [675–2550]

 HMG duration, IU

11 [8-12]

11 [5-13]

 Starting dose, IU

225 [150–225]

187.5 [150–225]

 FSH on the day of stimulation, IU/l

2.34 [1.59–3.58]

2.74 [1.88–4.64]

 LH on the day of stimulation, IU/l

0.81 [0.58–1.17]

0.79 [0.55–1.2875]

 E2 on the day of stimulation, pg/ml

20 [12-30]

23 [14-35]

 E2 on the day of triggering, pg/ml

3845 [2390–5198]

3231.5 [1850.75–4754.5]

 LH on the day of triggering, IU/l

0.69 [0.41–1.13]

0.7 [0.39–1.29]

 P on the day of triggering, ng/ml

1.03 [0.71–1.46]

0.86 [0.6–1.2]

 Oocyte yield

11 [8-16]

10 [6-13]

 Maturation rate of oocytes,%

92.8 [84.6–100]

92.85 [83.33–100]

 Embryos subjected to blastocyst culture

6 [4-9]

5 [3-8]

 Good quality embryos

5 [3-7]

4 [2-6]

 Cycles with no blastocyst formed, %

1008(7.4)

213(10.9)

 Blasocyst formed, per cycle

3 [2-6]

3 [1-5]

 Blastulation rate, per cycle

58.33 [37.5–75]

61.54 [38.46–81.82]