TLI (n=1219) SC (n=1039) Mean difference/Odds ratio (95% confidence interval), p value
Clinical pregnancy, n (%) 571 (46.84) 435 (41.87) 1.22 (1.04 to 1.45), 0.017
Multiple pregnancy, n (%) 37 (6.48) 21 (4.83) 1.37 (0.79 to 2.37), 0.267
Live birth, n (%) 490 (39.87) 395 (38.02) 1.08 (0.91 to 1.28), 0.369
Adjusted Odds ratio # 1.20 (1.01 to 1.44), 0.040
Proportion of cycles with cryopreserved embryos available following unsuccessful fresh embryo transfer, % (n) 41.80 (293/701) 36.69 (226/616) 1.24 (0.99 to 1.55), 0.058
Number of frozen embryo transfers, mean (SD) ~ 1.25 (0.90) 1.22 (0.90) 0.03 (-0.12 to 0.19), 0.707
Live birth per frozen embryo transfer, % (n) 30.96 (122/394) 30.39 (93/306) 1.03 (0.74 to 1.42), 0.377
Cumulative live birth per oocyte retrieval, n (%) 612 (50.29) 488 (46.78) 1.14 (0.96 to 1.34), 0.125
Adjusted Odds ratio # 1.24 (1.04 to 1.48), 0.016