Table 1. Live birth outcomes in real-world studies comparing PGT-A and non-PGT-A cycles
Study Outcome denominator LBR Control (%) (n/N) LBR PGT-A (%) (n/N) Odds ratio (95% CI) Direction of effect
SART (2022) ET 41% (19,398/47,238) 53% (51,264/96,855) 0.61 (0.60-0.62) Favors PGT-A
Zegers-Hochschild et al ., 2023; 2025; 2026 (RedLARA 2020-2022) ET 34% (9,245/26,870) 41% (6,589/16,101) 0.75 (0.72-0.78) Favors PGT-A
Sarkar et al . (2023) ET 43% (3,043/7,128) 49% (4,410/9,014) 0.78 (0.73-0.82) Favors PGT-A
Ma et al . (2023) CI/OR 31% (3,150/10,140) 22% (1,155/5,350) 1.64 (1.51-1.70) Favors Control
Roberts et al . (2022) CI/OR 44% (19,476/44,656) 27% (809/3,001) 2.10 (1.92-2.27) Favors Control
Zegers-Hochschild et al ., 2023; 2025; 2026 (RedLARA 2020-2022) CI/OR 24% (9,245/38,572) 17% (6,589/38,381) 1.52 (1.47-1.57) Favors Control

SART: Society for Assisted Reproductive Technology
RedLARA: Latin American Network of Assisted Reproduction
LBR: live birth rate
ET: embryo transfer
CI: cycle initiated
OR: oocyte retrieval.