Table 1 Baseline data of the 421 assessed women

Age (years))

29.29 ± 3.57

29.50 ± 3.67

0.561

Infertility age (years)

2.00 (1.00, 4.00)

2.00 (1.50, 4.00)

0.221

BMI(kg/m²)

22.85 ± 2.84

21.63 ± 2.69

< 0.001

FPG (mmol/L)

5.01 ± 0.49

4.91 ± 0.37

0.655

Insulin (μIU/ml)

10.06 ± 5.57

8.42 ± 4.89

0.020

HDL (mmol/L)

1.42 (1.19, 1.66)

1.51 (1.29, 1.73)

0.537

LDL (mmol/L)

2.51 (2.15, 2.98)

2.29 (1.94, 2.65)

< 0.001

TC (mmol/L)

4.59 ± 0.85

4.39 ± 0.75

< 0001

TG (mmol/L)

1.09 (0.79, 1.66)

0.80 (0.62, 1.12)

< 0.001

E2 (pg/ml)

35.44 (27.78, 44.99)

36.23 (28.40, 45.37)

0.311

LH (mIU/ml)

9.17 ± 5.26

4.99 ± 2.04

< 0.001

FSH (mIU/ml)

6.25 ± 1.59

6.41 ± 1.49

0.293

P (ng/ml)

0.47 ± 0.19

0.47 ± 0.19

0.971

PRL (μIU/ml)

318.00 (224.32, 417.33)

323.30 (257.85, 431.60)

0.471

TSTO (ng/ml)

0.37 (0.25, 0.51)

0.24 (0.18, 0.32)

0.049

AMH (ng/ml)

8.39 (6.22,12.08)

3.22 (2.07, 4.66)

< 0.001

AFC

28.00 (24.00, 36.00)

16.00 (12.00, 20.00)

< 0.001