BTG3 and aneuploidy: After excluding the miscarriages occurring from embryonic aneuploidy, the biochemical pregnancy losses, and the ectopic pregnancies, LBRs were 92.8% (256/276) for the ANA-positive group and 93.0% (489/526) for the ANA-negative group: OR = 0.97 (95% CI = 0.55–1.70).