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Table 1 The characteristics of women grouped according to presence of live birth

From: Serum progesterone levels greater than 32.5 ng/ml on the day of embryo transfer are associated with lower live birth rate after artificial endometrial preparation: a prospective study

Variables* With live birth
(n = 88)
Without live birth
(n = 170)
P-value
Women’ age (yr.) 32.4 ± 4.1 33.1 ± 4.1 0.18
Body mass index (kg/m2) 25.2 ± 2.1 25.0 ± 2.2 0.50
Cause of infertility, n (%)    0.47
 PCOS 35 (39.8) 71 (41.8)  
 Male factor 34 (38.6) 50 (29.4)  
 Tubal factor 6 (6.8) 20 (11.8)  
 Unexplained 8 (9.1) 15 (8.8)  
 Mixed (both female and male factor) 5 (5.7) 14 (8.2)  
No. of MII oocytes 6.2 ± 1.9 6.0 ± 2.0 0.34
Basal serum FSH level ( IU/l) 5.9 ± 1.6 5.7 ± 1.7 0.26
Fertilization rate 0.76 ± 0.15 0.75 ± 0.14 0.62
Endometrial thickness (mm) 9.6 ± 1.4 9.5 ± 1.0 0.34
P4 level on ET day (ng/ml) 27.3 ± 15.0 37.1 ± 25.8 < 0.001
E2 level on ET day (pg/ml) 631.5 ± 350.5 722.5 ± 432.5 0.07
No. of transferred embryos 1.65 ± 0.47 1.59 ± 0. 49 0.30
  1. *Significant level was considered at p < 0.05; values are presented as mean ± standard deviation or number (percentage)