Table 3.
Group | nTC | nTE | navga | Pregnancy rateb (%) |
Miscarriage rateb (%) | |||
Clinical | Chemical | Ectopic | Multiple | |||||
1 | 269 | 655 | 2.4±0.6 | 37.5 (101/269) | 3.0 (8/269) | 2.2 (6/269) | 29.7 (30/101) | 15.8 (16/101) |
2 | 305 | 712 | 2.3±0.5* | 33.1 (101/305) | 1.6 (5/305) | 1.6 (5/305) | 26.7 (27/101) | 15.8 (16/101) |
3 | 490 | 1 137 | 2.3±0.5* | 37.1 (182/490) | 1.2 (6/490) | 1.4 (7/490) | 28.0 (51/182) | 15.9 (29/182) |
4 | 307 | 678 | 2.2±0.5Δ | 41.0 (126/307) | 2.6 (8/307) | 2.3 (7/307) | 31.7 (40/126) | 12.7 (16/126) |
5 | 155 | 334 | 2.2±0.5Δ | 40.6 (63/155) | 1.9 (3/155) | 1.9 (3/155) | 20.6 (13/63) | 17.5 (11/63) |
6 | 234 | 507 | 2.2±0.4Δ | 40.2 (94/234) | 1.7 (4/234) | 2.1 (5/234) | 37.2 (35/94) | 12.8 (12/94) |
7 | 71 | 173 | 2.4±0.6 | 46.5 (33/71) | 2.8 (2/71) | 0.0 (0/71) | 36.4 (12/33) | 15.2 (5/33) |
n TC: number of transfer cycles; n TE: number of transferred embryos; n avg: average number of embryos transferred of a subject
Values are expressed as mean±SD
Pregnancy rates and miscarriage rate were compared by logistic regression
P<0.05: significantly lower than Group 1
P<0.05: significantly lower than Groups 1, 2, 3, and 7 (rank transform method)