Table 2.

Clinical characteristics of IVF or ICSI attempts in F1 II-1

IVF/ICSI attempts	IVF	IVF	IVF	ICSI	ICSI
No. of oocytes retrieved	4	2	4	6	6
No. of MII oocytes	N/A	N/A	3	3	4
Total fertilization rate (%)	N/A	N/A	3/4(75)	3/3(100)	2/4(50)
Cleavage rate (%)	N/A	N/A	3/3(100)	3/3(100)	2/2(100)
Good quality embryo number, day 5	N/A	N/A	0	0	1
Blastocyst formation rate (%)	N/A	N/A	1/3(33)	1/3(33)	1/2(50)
No. of embryos transferred	1	1	1	0	1
Clinical pregnancy	No	No	No	No	Yes
Live birth	No	No	No	No	No

The first two assisted reproductive technology processes were carried out in other hospitals, and the specific data are unknown

N/A, not applicable; MII, metaphase II

IVF fertility rate = (number of fertilized egg/total number of eggs) × 100%

ICSI fertility rate = (number of fertilized egg/number of MII eggs) × 100%

Cleavage rate = (number of fertilized and cleaved embryos/(number of fertilized egg) × 100%

Blastocyst formation rate = (number of blastocysts formed/number of blastocysts cultured) × 100%