From: Establishment of comparative performance criteria for IVF centers: correlation of live birth rates in autologous and donor oocyte IVF cycles
Age group
Average LBR per fresh transfer
p- value
Odds ratio
95% confidence interval
Donor
55.6%
--
<35
46.7%
0.027
1.45
1.04 – 2.02
35-37
39.1%
0.001
2.21
1.46 – 3.34
38-40
28.7%
0.016
1.56
1.08 – 2.24