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Table 1 Patients’ characteristics and clinical outcomes when CE was defined as ≥ 1 PCs in 10 HPFs

From: Histological diagnostic criterion for chronic endometritis based on the clinical outcome

  Non-CE CE P value
N = 27 N = 26
Age (y), Mean ± SD 35.0 ± 3.30 36.2 ± 3.45 0.2
Gravidity, Median, IQR 0 (0–2) 0 (0–1) 0.23
Parity, Median, IQR 0 (0–0) 0 (0–1) 0.039
BMI (kg/m2), Median, IQR 21.4 (18.9–23.7) 21.8 (20.2–26.6) 0.24
Smoking habit (%) 0 0 1.00
FSH (mIU/mL), Median, IQR 8.1 (4.8–24) 9.1 (5–12.5) 0.2
Previous OPU cycles, Median IQR 1 (1–4) 1.5 (1–2.25) 0.72
EM thickness (mm), Mean ± SD 10.3 ± 1.60 10.5 ± 2.38 0.75
Rate of good blastocysts (%) 59.3 (16/27) 65.4 (17/26) 0.78
Infertility cause
 Tubal factor 5 10 0.14
 Ovarian factor 4 4 1
 Endometriosis 7 6 1
 ASA 0 0 1
 Fertilization failure 1 1 1
 Male factor 7 6 1
 Unexplained fertility 10 4 0.12
Pregnancy rate (%) 63.0 (17/27) 30.8 (8/26) 0.028
Live birth rate (%) 51.9 (14/27) 7.7 (2/26) 0.0007
Miscarriage rate (%) 17.7 (3/17) 75 (6/8) 0.0099
  1. CE chronic endometritis, PCs plasma cells, non-CE non chronic endometritis, HPF high-power field, SD standard deviation, IQR interquartile range, BMI body mass index, FSH follicle stimulate hormone, OPU ova pick up, EM endometrial, ASA anti-sperm antibody positive