Placental Vascular Obstructive Lesions: Risk Factor for Developing Necrotizing Enterocolitis
Table 2
Prevalence of chorioamnionitis (CA) and vasculitis in the different study populations. Comparisons are given between vascular obstructive lesions associated with chorioamnionitis, vasculitis, and without these inflammatory conditions. P-value*: comparison between the three different control groups and the corresponding study group. P-value**: comparison between the very preterm control group and the very preterm study group**.
Number of placentae with CA
Number of placentae with vasculitis
Vascular obstructive lesions
With CA
With vasculitis
Without CA and vasculitis
Study group*
16 (20.8%)
14 (18.2%)
12 (15.6%)
9 (11.7%)
37 (48%)
Very preterm study group (<30 weeks) * *
12 (29.2%)
9 (21.9%)
7 (17%)
5 (12.2%)
19 (46.3%)
Control group (<37 weeks) P-value*
138 (17.9%)
101 (13.1%)
16 (2.1%) .0001*
5 (0.65%) .0001*
93 (12.25%) .0001*
Preterm control group (<37 weeks) P-value*
29 (10.4%)
34 (12.2%)
1 (0.36%) .0001*
1 (0.36%) .0001*
39 (14%) .0001*
Very preterm control group (<30 weeks) P-value* P-value**
