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Table 1 Baseline characteristics of patients

From: Impacts of Cyclosporin A on clinical pregnancy outcomes of patients with a history of unexplained transfer failure: a retrospective cohort study

Characteristic CsA
(N = 58)
Con
(N = 120)
P value
Patients’ age at OPU (y) 32.0 (29.0-34.3) 31.5 (29.0–35.0) 0.698
Patients’ age during ET (y) 33.5 (30.0-35.3) 32.0 (30.0–36.0) 0.777
BMI (kg/m2) 22.5 ± 3.3 22.8 ± 3.5 0.596
Basal FSH (IU/mL) 5.9 (4.3–7.4) 6.0 (5.0–8.0) 0.225
No. of ET cycles 2.0 (2.0–3.0)* 2.0 (2.0–2.0) 0.027
No. of total embryos cryopreserved 6 (4–8) 5 (3–6) 0.138
No. of current cycle embryos transferred 2.0 (2.0–3.0) 2.0 (2.0–2.0) 0.230
No. of total prior embryos transferred 2.0 (2.0–2.0)* 2.0 (1.0–2.0) 0.006
Endometrium thickness(mm) 9.0 (8.0-10.3) 9.0 (8.0-10.5) 0.632
Causes of Infertility    > 0.05
 Female (%) 65.5 (38) 69.2 (83)  
 Diminished ovarian reserve (%) 13.1 (5) 14.5 (12)  
 Ovulation disease (%) 18.4 (7) 19.3 (16)  
 Tubal disease (%) 63.2 (24) 60.2 (50)  
 Unexplained (%) 5.3 (2) 6.0 (5)  
 Male (%) 1.7 (1) 5.8 (7)  
 Female and Male (%) 27.6 (16) 22.5 (27)  
 Others (%) 5.2 (3) 2.5 (3)  
 Primary (%) 48.3 (28) 55.0 (66)  
 Secondary (%) 51.7 (30) 45.0 (54)  
Development stage of ET embryos    > 0.05
 Day3 (%) 46.6 (27) 50.0 (60)  
 Day5 (%) 15.5 (9) 14.2 (17)  
 Day6 (%) 37.9 (22) 35.8 (43)  
Endometrium morphology    > 0.05
 A (%) 58.6 (34) 58.3 (70)  
 A- (%) 20.7 (12) 31.7 (38)  
 Others (%) 20.7 (12) 10.0 (12)  
  1. Values are shown as mean ± SD, median (IQR) or n (%). *P < 0.05 (P value*: Kruskal Wallis Rank Test for continuous variables) compared with the control group. CsA cyclosporin A; OPU oocyte pick-up; ET embryo transfer; BMI body mass index; FSH follicular stimulation hormone