Placental Vascular Obstructive Lesions: Risk Factor for Developing Necrotizing Enterocolitis
Table 1
FVOL: fetal vascular obstructive lesions defined as placentae with the presence of one or more of the following lesions: MT: multiple thrombi, IT: isolated thrombus, OE: obliterative endarteritis, HEV: hemorrhagic endovasculitis. P-value*: comparison between the three different control groups and the study group* P-value**: comparison between the very preterm control group and the very preterm study group**.
Total number of placentae
FVOL
Type of vascular obstructive lesions
MT
IT
OE
HEV
Study group*
77
50 (64.9%)
30 (39.0%)
15 (19.5%)
15 (19.5%)
11 (14.3%)
Very preterm study group (<30 weeks) * *
41
24 (58.5%)
14 (34.1%)
10 (24.4%)
5 (12.2%)
3 (7.3%)
Control group P-value*
769
130 (16.9%) .0001*
37 (4.8%) .0001*
59 (7.7%) .0021*
20 (2.6%) .0001*
25 (3.3%) .0002*
Preterm control group (<37 weeks) P-value*
279
47 (16.8%) .0001*
15 (5.4%) .0001*
27 (9.7%) .00268*
9 (3.2%) .0001*
7 (2.5%) .0002*
Very preterm control group (<30 weeks) P-value* P-value**
