Fig. 1From: New national outcome data on fresh versus cryopreserved donor oocytesLive birth rates with fresh versus cryopreserved donated oocytes, 2013–2015. * P < 0.001; Live birth rates were compared using the two-tailed Fisher’s exact test and Wilson confidence interval for binomial proportions. ^ 2015 data were calculated from a preliminary report distributed by SARTBack to article page