Prenatal Detection of Congenital Heart Diseases: One-Year Survey Performing a Screening Protocol in a Single Reference Center in Brazil

Table 2

Baseline characteristics of the patients.

	Normal heart (𝑛=244)	Abnormal heart (𝑛=27)	Total (𝑛=271)	𝑃
Maternal age at echo				0.17^a
≥35 years old, 𝑛^∘ (%)	103 (42%)	8 (29.6%)	111 (40.9%)
Gestation age at echo (weeks), mean (standard deviation)	27.8 (±4.6)	28.9 (±4.6)	27.8 (±4.6)	0.84^b
Twin pregnancy, 𝑛^∘ (%)	7 (2.8%)	1 (3.7%)	8 (2.9%)	0.58^c
Race, 𝑛^∘ (%)				0.07^c
White	78 (45.4%)	8 (36.4%)	87 (44.6%)
Black	24 (13.9%)	1 (4.6%)	25 (12.8%)
Mixed	68 (39.5%)	11 (50%)	79 (40%)
Asian	2 (1.2%)	2 (9%)	4 (2%)
Indication of screening*, 𝑛^∘ (%)				<0.001^c
Maternal cause	180 (73%)	3 (11%)	183 (67%)
Fetus cause	66 (27%)	24 (89%)	90 (33%)

aChi Pearson test. bMann-Whitney test. cExact Fisher test. ∗Some cases had one more indication.