Table 3.

Clinical outcome per single embryo transfer on day 3

	T (n = 157)		nT (n = 38)		P-value
Female age	33,5 ± 5,14		34,3 ± 5,07		0,349
Positive βhCG	45	28,7 %	7	18,4 %	0,226
Biochemical pregnancy	3	1,9 %	1	2,6 %	0,583
Clinical pregnancy	42	26,8 %	6	15,8 %	0,209
Clinical pregnancy with fetal heart beat	36	22,9 %	5	13,2 %	0,267

T tetrahedral, nT non-tetrahedral, n number

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