Table 1 Baseline demographics grouped by blastomere number
From: Increased blastomere number is associated with higher live birth rate in day 3 embryo transfer
≤ 6-cell (n = 100) | 7-cell (n = 207) | 8-cell (n = 1522) | 9-cell (n = 187) | 10-cell (n = 91) | ≥ 11-cell (n = 130) | P-value | |
|---|---|---|---|---|---|---|---|
Maternal age (years) | 32.4 ± 4.9 | 31.9 ± 5.1 | 31.2 ± 4.5 | 31.3 ± 4.8 | 31.6 ± 5.1 | 31.3 ± 4.5 | 0.119 |
Maternal BMI (kg/m2) | 21.9 ± 3.4 | 21.8 ± 3.0 | 21.9 ± 3.5 | 22.0 ± 3.3 | 21.6 ± 3.0 | 22.4 ± 3.4 | 0.639 |
Duration of infertility (years) | 4.0 (2.0, 6.9) | 4.0 (2.0, 7.0) | 3.7 (2.0, 6.0) | 3.8 (2.0, 5.1) | 3.0 (2.0, 6.0) | 4.0 (2.0, 6.0) | 0.496 |
Secondary infertility, n (%) | 62 (62.0) | 130 (62.8) | 1114 (73.2) | 138 (73.8) | 70 (76.9) | 90 (69.2) | 0.006 |
Infertility diseases | |||||||
Tubal factor, n (%) | 71 (71.0) | 137 (66.2) | 1134 (74.5) | 143 (76.5) | 71 (78.0) | 99 (76.2) | 0.113 |
Male factor, n (%) | 27 (27.0) | 60 (29.0) | 432 (28.4) | 50 (26.7) | 24 (26.4) | 30 (23.1) | 0.839 |
Ovulatory dysfunction, n (%) | 8 (8.0) | 31 (15.0) | 156 (10.2) | 31 (16.6) | 9 (9.9) | 21 (16.2) | 0.017 |
Endometriosis, n (%) | 16 (16.0) | 14 (6.8) | 113 (7.4) | 12 (6.4) | 7 (7.7) | 7 (5.4) | 0.040 |
Intrauterine adhesion, n (%) | 3 (3.0) | 14 (6.8) | 90 (5.9) | 13 (7.0) | 7 (7.7) | 9 (6.9) | 0.742 |
Scarred uterus, n (%) | 11 (11.0) | 38 (18.4) | 652 (42.8) | 59 (31.6) | 33 (36.3) | 35 (26.9) | < 0.001 |
Basal endocrine profile | |||||||
FSH (mIU/mL) | 6.5 (5.1, 8.2) | 6.2 (5.1, 7.8) | 6.2 (5.1, 7.5) | 6.1 (5.3, 7.7) | 6.5 (5.2, 7.8) | 6.1 (4.9, 7.4) | 0.886 |
LH (mIU/mL) | 4.1 (2.8, 5.5) | 3.8 (2.8, 5.3) | 4.0 (2.9, 5.5) | 4.0 (3.0, 5.6) | 3.7 (2.7, 5.0) | 4.2 (2.8, 5.5) | 0.206 |
E2 (pg/mL) | 42.5 (26.2, 64.5) | 35.6 (26.0, 50.1) | 35.9 (26.5, 49.0) | 35.9 (26.1, 46.7) | 34.9 (26.8, 49.0) | 34.0 (25.0, 46.0) | 0.252 |
PRL (ng/mL) | 14.7 (9.9, 20.7) | 14.5 (10.4, 19.9) | 13.7 (10.1, 18.7) | 13.4 (9.1, 18.1) | 13.4 (10.7, 19.0) | 13.9 (10.1, 19.7) | 0.561 |
History of IVF failure, n (%) | 31 (31.0) | 58 (28.0) | 326 (21.4) | 47 (25.1) | 26 (28.6) | 26 (20.0) | 0.043 |