. 2021 Feb 3;38(4):865–871. doi: 10.1007/s10815-021-02069-5

Table 3.

Sonographic evaluation

	Natural conception	IVF no PGT	IVF + PGT	p value
High-risk NT	2/513 (0.4%)	2/175 (1.1%)	3/371 (0.8%)	0.350^b
Anatomy US abnormal	77/712 (10.8%)	36/236 (15.2%)	68/475 (14.3%)	0.093^a
Placenta US abnormal	21/712 (3.0%)	21/236 (8.9%)	42/475 (8.8%)	< 0.001^a

Data presented n (%), with denominators provided when data is missing

^aChi-square test

^bFisher’s exact test