Skip to main content

Table 2 Pregnancy outcomes of patients with different β-hCG levels 14 days after blastocyst transfer

From: Possibility of live birth in patients with low serum β-hCG 14 days after blastocyst transfer

HCG level mIU/ml 5–50 51–100 101–200 201–299 P
Female age (years) 33.0 ± 4.5 32.2 ± 4.2 32.2 ± 4.8 32.6 ± 5.2 0.835
AMH (ng/ml) 6.18 ± 4.37 6.79 ± 4.30 6.80 ± 4.78 6.60 ± 4.89 0.922
BMI (kg/m2) 21.6 ± 2.9 22.5 ± 3.0 21.9 ± 3.2 22.6 ± 3.8 0.269
Days of embryos transfer %(n)      0.356
 5 63.6 (21/33) 75.9 (41/54) 58.8 (70/119) 69.8 (74/106)  
 6 33.3 (11/33) 24.1 (13/54) 38.7 (46/119) 28.3 (30/106)  
 both 5&6 3.0 (1/33) 0 (0/54) 2.5 (3/119) 1.9 (2/106)  
No. of embryos transferred % (n)      0.609
 1 45.5 (15/33) 44.4 (24/54) 46.2 (55/119) 37.7 (40/106)  
 2 54.5 (18/33) 55.6 (30/54) 53.8 (64/119) 62.3 (66/106)  
Serum β-hCG (mIU/ml) 34 (29,41) 80 (61,90) 145 (127,174) 244 (218,244) 1.93E-149
Biochemical pregnancy loss %(n) 75.8 (25/33) 29.6 (16/54) 13.4 (16/119) 13.2 (14/106) 3.81E-14
Early miscarriage %(n) 15.2 (5/33) 53.7 (29/54) 49.6 (59/119) 51.9 (55/106) 0.001
Ectopic pregnancy %(n) 9.0 (3/33) 7.4 (4/54) 11.8 (14/119) 8.5 (9/106) 0.827a
Late miscarriage %(n) 0.0 (0/33) 1.9 (1/54) 1.7 (2/119) 1.9 (2/106) 1.000a
Live birth %(n) 0.0 (0/33) 7.4 (4/54) 23.5 (28/119) 24.5 (26/106) 0.001
  1. a Fisher exact test were used