Table 4.

Clinical outcome per single embryo transfer on day 5

	T (n = 111)		nT (n = 24)		P-value
Female age	31 ± 3,9		30,5 ± 4,19		0,529
Positive βhCG	60	54,1 %	15	62,5 %	0,503
Biochemical pregnancy	3	2,7 %	1	4,2 %	0,547
Clinical pregnancy	57	51,4 %	14	58,3 %	0,653
Clinical pregnancy with fetal heart beat	53	47,8 %	13	54,2 %	0,655

T tetrahedral, nT non-tetrahedral, n number

Statistics: Age: independent Student’s t-test, Clinical outcome: two-tailed Fisher’s exact test