Table 1.
Pregnancy outcomes of patients with serum β-hCG level < 300 mIU/ml 14 days after blastocyst transfer
| Pregnancy outcomes | < 38 years | ≥38 years | Total | P |
|---|---|---|---|---|
| %(n) | %(n) | %(n) | ||
| Female age (years) | 31 (28,34) | 39 (38,41) | 1.13E-46 a | |
| AMH (ng/ml) | 5.83 (3.56, 9.34) | 3.64 (1.84,6.00) | 7.45E-5 | |
| BMI (kg/m2) | 21.9 ± 3.2 | 23.6 ± 3.7 | 0.001 | |
| Days of embryos transfer %(n) | 0.645 | |||
| 5 | 68.2 (176/258) | 55.6 (30/54) | ||
| 6 | 29.5 (76/258) | 44.4 (24/54) | ||
| both 5&6 | 2.3 (6/258) | 0(0/54) | ||
| No. of embryos transferred % (n) | 0.954 | |||
| 1 | 43.0 (111/258) | 42.6 (23/54) | ||
| 2 | 57.0 (147/258) | 57.4 (31/54) | ||
| Biochemical pregnancy loss | 22.5 (58) | 24.1 (13) | 22.8 (71) | 0.800 |
| Live birth % (n) | 19.0 (49) | 16.6 (9) | 18.6 (58) | 0.690 |
| Ectopic pregnancy % (n) | 10.1 (26) | 7.4 (4) | 9.6 (30) | 0.545 |
| Early Miscarriage % (n) | 46.9 (121) | 50.0 (27) | 47.4 (148) | 0.678 |
| Late miscarriage % (n) | 1.5 (4) | 1.9 (1) | 1.6 (5) | 1.000 b |
a P values meant to compare differences between the groups of < 38 years and ≥ 38 years .b Fisher exact test were used