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Distribution of cases by embryo grade.
| Embryo grade | Fresh ET | Frozen ET |
|---|---|---|
| AA | 204 (35.8%) | 178 (20.1%) |
| AB | 131 (23.0%) | 135 (15.2%) |
| BA | 37 (6.5%) | 78 (8.8%) |
| BB | 158 (27.7%) | 312 (35.3%) |
| AC | 2 (0.35%) | 5 (0.6%) |
| CA | 0 (0%) | 0 (0%) |
| BC | 30 (5.3%) | 70 (7.9%) |
| CB | 2 (0.35%) | 38 (4.3%) |
| CC | 6 (1.0%) | 69 (7.8%) |
Note: ET = embryo transfer; n = absolute number of embryos; % = percentage of an embryo grade in the ET group.
