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Table 3 Clinical parameters of the subjects with and without pregnancy

From: Increased GDF9 and BMP15 mRNA levels in cumulus granulosa cells correlate with oocyte maturation, fertilization, and embryo quality in humans

Variable Pregnancy Nonpregnancy P
Cases 100 96 -
Age (years) 30.74 ± 4.42 31.08 ± 5.16 ns
BMI (kg/m 2 ) 21.19 ± 3.60 21.68 ± 2.76 ns
Antral follicle count (both ovaries) 15.63 ± 6.23 11.94 ± 6.74 ns
Ovary volume (mL) 6.12 ± 3.18 5.34 ± 2.74 ns
FSH (IU/L) 8.30 ± 2.41 9.38 ± 5.63 ns
LH (IU/L) 5.19 ± 3.16 5.19 ± 3.39 ns
E 2 (pg/mL) * 48.33 ± 37.49 64.46 ± 37.95 <0.01
T (ng/L) 1.73 ± 0.92 1.74 ± 0.79 ns
PRL (pg/mL) 15.91 ± 7.71 17.36 ± 8.97 ns
Sperm number (×10 6 /ml) 0.35 ± 0.16 0.42 ± 0.18 ns
Sperm motility (%) 2.65 ± 0.63 2.85 ± 0.79 ns
Days of stimulation* 11.41 ± 2.33 10.24 ± 4.19 0.016
Gonadotropin dose (IU) 2212.09 ± 848.13 2089.00 ± 1127.21 ns
Retrieved oocytes* 14.14 ± 4.13 10.38 ± 3.31 <0.01
Oocyte maturation rate (%) 84.30 ± 13.67 83.38 ± 20.78 ns
Normal fertilization rate (%) 71.47 ± 17.93 69.63 ± 29.89 ns
Cleavage rate (%)* 90.05 ± 13.30 83.04 ± 27.96 0.024
  1. *p < 0.05, the pregnancy group compared with the nonpregnancy group; ns: not significant.