Table 4 Embryo Laboratory outcomes after matching
|  | Unexposed (n = 148) | Exposed (n = 50) | P value | OR 95%CI |
|---|---|---|---|---|
No. of oocytes retrieved | 1620 | 579 | Â | Â |
Mature oocyte rate, % | 83.1 (1347) | 85.0 (492) | 0.308 | 0.87 (0.67, 1.13) |
Damaged oocyte rate, % | 4.0 (64) | 3.1 (18) | 0.359 | 1.28 (0.75, 2.17) |
Normal fertilization rate, % | 71.3 (960) | 69.7 (343) | 0.516 | 1.08 (0.86, 1.35) |
Abnormal fertilization rate, % | 8.4 (113) | 10.4 (51) | 0.118 | 0.79 (0.56, 1.12) |
Cleavage rate, % | 97.0 (931) | 98.8 (339) | 0.061 | 0.38 (0.13, 1.09) |
High quality embryo rate, % | 50.2 (467) | 49.6 (168) | 0.849 | 1.02 (0.80, 1.31) |
Blastocyst formation ratea, % | 72.9 (554) | 57.1 (165) | <0.001 | 2.02 (1.52, 2.68) |
Available blastocyst rateb, % | 51.8 (394) | 42.2 (122) | 0.005 | 1.47 (1.12, 1.94) |