Table 2.

Euploidy by morphology and embryo sex—bivariate models (age adjusted)

	Total	Euploid	% Euploid	OR (95% CI) Age-adjusted	p value (age-adjusted)
Total	1559	628	40.3%
Expansion
5 or 6	920	449	48.8%	Reference
3 or 4	174	56	32.2%	0.54 (0.38–0.77)	< 0.001
1 or 2	285	89	31.2%	0.54 (0.40–0.72)	< 0.001
Morulae	180	34	18.9%	0.28 (0.19–0.42)	< 0.001
ICM	Total
A	399	212	53.1%	Reference
B	626	264	42.2%	0.67 (0.52–0.87)	< 0.01
C	73	29	39.7%	0.59 (0.35–1.00)	0.05
No ICM grade	461	123	26.7%	0.37 (0.27–0.49)	< 0.001
Trophectoderm	Total
A	269	153	56.9%	Reference
B	665	305	45.9%	0.70 (0.52–0.94)	0.02
C	164	47	28.7%	0.34 (0.22–0.53)	< 0.001
No troph grade	461	123	26.7%	0.33 (0.24–0.46)	< 0.001
Sex	Total
Female	798	307	38.5%	Reference
Male	761	321	42.2%	1.19 (0.96–1.47)	0.11
Blastocyst biopsy day	Total
5	1222	492	40.3%	Reference
6	337	136	40.4%	1.21 (0.93–1.56)	0.15
Cohort size	Total
< 5	392	119	30.4%	Reference
5 to 9	674	288	42.7%	1.26 (0.95–1.66)	0.10
10 or greater	493	221	44.8%	0.95 (0.69–1.31)	0.76

Note: Statistically significant findings denoted by italics