Table 2 Patients' and cycles characteristics of the study objects
From: Early embryo development in a sequential versus single medium: a randomized study
| Â | GROUP A (n = 70) | GROUP B (n = 77) |
|---|---|---|
Patient characteristics | Â | Â |
Mean Age | 30.0 (± 3.0) | 29.9 (± 3.2) |
Cause of subfertility | Â | Â |
   Tubal factor | 7 (10%) | 7 (9%) |
   Ovulation | 17 (24%) | 14 (18%) |
   Endometriosis | 16 (23%) | 13 (17%) |
   Implantation | 3 (4%) | 4 (5%) |
   Other | 6 (9%) | 9 (12%) |
Male factor | 57 (81%) | 50 (65%) |
Cycle characteristics | Â | Â |
Number of first cycle patients (number of embryos) | 58 (354) | 61 (455) |
Number of second cycle patients (number of embryos) | 12 (74) | 16 (128) |
Number of ICSI cycles (%) | 31 (44%) | 32 (42%) |
Number of IVF cycles (%) | 39 (56%) | 45 (58%) |
Mean number of oocytes/PU (± SD) | 11.1 (± 5.3) | 11.3 (± 5.1) |
Mean number of mature oocytes/PU (± SD) | 9.6 (± 4.3) | 10.2 (± 4.9) |
Fertilization rate/oocyte (± SD) | 54% (± 20) | 67% (± 20%) |
Fertilization rate/mature oocyte (± SD) | 63% (± 21) | 74% (± 17%) |