Table 1.

Maternal demographics and pregnancy characteristics comparing patients with echogenic bowel to those without echogenic bowel diagnosed on second-trimester ultrasound

Variable	Echogenic Bowel (n=260)	Non-Echogenic Bowel (n=63,788)	p-value
Mean Maternal Age (years)	29.5 ± 6.2	30.2 ± 6.3	0.10
Mean Gestational Age at Exam (weeks)	18.4 ± 1.8	18.5 ± 1.7	0.62
Mean Gravidity	2.7 ± 1.7	2.7 ± 1.6	0.68
Mean Parity	1.1 ± 1.1	1.2 ± 1.1	0.88
Caucasian Race	73%	63%	<0.001
African American Race	11%	21%	<0.001
Tobacco Exposure	15%	11%	0.07
Alcohol Exposure	21%	19%	0.57
Maternal Chronic Hypertension	1%	2%	0.19
Maternal Pre- gestational Diabetes	0.4%	2%	0.09
Pre-eclampsia	7%	7%	0.75
Gestational Diabetes	3%	5%	0.08
History of Vaginal Bleeding	9%	6%	0.01