[Retracted] Diagnostic Value of Prenatal Ultrasound Parameters and Esophageal Signs in Pouch and Lower Thoracic Segment in Fetuses with Esophageal Atresia

Table 1

Comparison of general information.

Indicators	Observation group ()	Control group ()
Maternal age (years)			1.096	0.277
Gestation (weeks)			1.481	0.143
Body mass index (kg/m^2)			0.520	0.605
Pregnancy condition ( (%))
First pregnancy	23 (65.71)	26 (74.29)	0.612	0.434
Multiple pregnancy	12 (34.29)	9 (25.71)
Parity ( (%))
Primiparity	28 (80.00)	30 (85.71)	0.402	0.526
Multiparity	7 (20.00)	5 (14.29)
Pregnancy history of malformed fetus ( (%))	1 (2.86)	0 (0.00)	—	1.000
Pregnant infection ( (%))	4 (11.43)	1 (2.86)	0.862	0.353