. 2016 Sep 30;8(3):97–102. doi: 10.1556/1646.8.2016.3.4

Table III.

Magnesium sulfate infusion and nifedipine effects on blood pressure levels in severe pre-eclampsia compared with normal pregnancy. Mann–Whitney t-test and one-way analysis of variance (ANOVA)

Blood pressure level [mean (SD), mmHg]
	At admission to study	2–4 h MgSO₄	1 h after placental separation	24 h postpartum	ANOVA P
Normal pregnancy (n = 25)
Systolic	123.2 (7.5)	–	121.6 (5.5)	122.8 (7.4)	0.69
Diastolic	74.8 (7.1)	–	72.8 (7.4)	74.8 (5.1)	0.47
Severe pre-eclampsia (n = 36)
Systolic	193.5 (15.0)^a	182.9 (14.7)	169.1 (13.3)^abe	157.8 (11.2)^abe	<0.001
Diastolic	107.7 (7.0)^a	100.3 (3.0)	96.2 (6.0)^abe	88.9 (5.2)^abe	<0.001
Severe pre-eclampsia (pre-term labor, n = 22)
Systolic	192.4 (12.6)^a	181.9 (12.9)	168.2 (14.0)^acf	157.3 (12.0)^acf	<0.001
Diastolic	107.1 (7.2)^a	104.2 (21.8)	95.0 (6.7)^acf	88.2 (5.0)^acf	<0.001
Severe pre-eclampsia (full-term labor, n = 14)
Systolic	196.4 (17.4)^a	185.0 (16.5)	171.3 (11.3)^adg	158.6 (10.3)^adg	<0.001
Diastolic	107.1 (6.1)^a	101.4 (3.6)	98.0 (4.1)^adg	90.0 (5.5)^adg	<0.001
Severe pre-eclampsia (pre- vs. full-term labor)
P	NS		NS	NS	NS

NS = not significant;

^aP ≤ 0.001 compared to normal pregnancy; ^bsevere pre-eclampsia; ^cpre-term labor; ^dfull-term labor (P ≤ 0.001) compared with admission to study; ^efgP ≤ 0.001 between 24 h postpartum and after placental separation