Table 2. Five-fold cross-validation experiment on varying the distribution between FH+, FH- and discarded embryos used during training.

The area under the curve (AUC) was evaluated for both transferred embryos with known implantation data (KID) and all embryos for each validation data set.

Distribution			Validation AUC
FH+	FH-	Discarded	KID embryos (mean ± st. dev)	All embryos (mean ± st. dev)
30%	70%	0%	0.680 ± 0.016	0.903 ± 0.018
50%	50%	0%	0.686 ± 0.007	0.907 ± 0.007
50%	10%	40%	0.687 ± 0.011	0.954 ± 0.002