Figure 2

Direct comparison of fresh eggs and frozen eggs from 12 individual donors. There are no statistical significant differences in the blastocyst development among 12 donors between fresh and frozen eggs, in which 7 donors (marked by stars) had more or equal blastocyst development rates as compared with their fresh eggs (A). Up to 5 recipients received eggs from the same donor and the numbers of cycles with frozen and fresh eggs are shown in B, and the numbers of pregnant recipients from each donor are shown in C. Long protocol was used to freeze the eggs and data was from the same patients as shown in Table  3.