Table 2: Findings of histomorphological examination of placentas in severe hypertension group A versus mild hypertension group B.

Group A Placentas (Severe hypertension)Group B Placentas (Mild hypertension)

Vessels number/field of vision (mean ± s.d) *
Infarction72.72%*40%
Villous fibrinoid necrosis72.72%*32.72%
Villous hypermaturity40%**25.45%
Avascular villi10.9%7.27%
Calcifications32.72%25.45%
Lymphohistiocytic villitis1.81%0%
Thickened vessels25.45%23.63%

* , ** .