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Table 1 Demographic characteristics of scratching and non-scratching groups

From: Endometrial injury concurrent with hysteroscopy increases the expression of Leukaemia inhibitory factor: a preliminary study

  Scratching (n = 20) Non-scratching (n = 20) P*
Age (y) 29.2 ± 1.02 28.7 ± 0.33 0.30
BMI (kg/m2) 24.8 ± 1.92 25.1 ± 0.34 0.06
Infertility duration (y) 5.21 ± 1.40 4.79 ± 1.10 0.08
The number of failed IVF-ET attempt 3.4 ± 1.2 3.2 ± 2.08 0.09
Endometrial thickness on hysterosocpy day (mm) 10.5 ± 3.20 9.77 ± 2.06 0.70
FSH (mIU/mL) 4.98 ± 2.02 5.02 ± 1.66 0.55
LH (mIU/mL) 7.66 ± 2.11 8.30 ± 2.05 0.07
Testosterone (ng/mL) 0.55 ± 1.55 0.49 ± 0.22 0.65
Glucose (mg/dL) 85.7 ± 6.54 80.4 ± 3.05 0.50
Positive beta hCG test (%) 8 (40%) 6 (30%) 0.03
Clinical pregnancy (%) 7 (35%) 5 (25%) 0.02
LIF mRNA 11.1-fold increase after injury (p < 0.001)
3.9 times increase compared to the control group (p < 0.02)
 
  1. Data presented as means ± SD. BMI; body mass index, *p < 0.05