Magnesium Supplementation and Blood Pressure in Pregnancy: A Double-Blind Randomized Multicenter Study
Table 3
Labour and fetal outcomes. Missing results are due to labour at other hospitals and no access to medical records (PP).
Variable
Magnesium ( = 83)
Placebo ( = 93)
value
Gestational length at birth
40.2 (2.0)
39.9 (1.5)
0.03
40.7 (29.3; 42.4)
40.1 (35.0; 42.4)
= 80
= 89
Premature labour (<37+0 weeks)
5 (6.3%)
3 (3.4%)
0.60
Duration of labour (active labour in hours)
7.27 (3.81)
7.07 (3.60)
0.85
7.00 (1.00; 18.00)
7.00 (1.00; 17.00)
= 63
= 74
Mode of delivery
Emergency Cesarean Section
14 (17.9%)
7 (8.1%)
0.10
Elective Cesarean Section
1 (1.3%)
5 (5.8%)
0.26
Normal vaginal delivery
59 (75.6%)
62 (72.1%)
0.76
Vacuum extraction
4 (5.1%)
12 (14.0%)
0.10
Blood loss, mL
499.7 (351.5)
518 (347)
0.48
400.0 (50.0; 2200.0)
425 (150; 2000)
= 78
= 86
Birth weight (g)
3482 (597)
3511 (454)
0.99
3570 (1335; 4594)
3575 (2540; 4860)
= 79
= 86
Apgar score at 5 minutes
9.73 (0.80)
9.73 (0.64)
0.72
10.00 (5.00; 10.00)
10.00 (7.00; 10.00)
= 78
= 86
Umbilical arterial pH
7.25 (0.08)
7.25 (0.09)
0.92
7.27 (7.08; 7.45)
7.26 (7.03; 7.43)
= 72
= 80
NICU care
0 (no)
62 (80.5%)
76 (88.4%)
1 (yes)
15 (19.5%)
10 (11.6%)
0.24
For categorical variables, (%) is presented. For continuous variables, mean (SD)/median (min; max)/ is presented. For comparison between groups, Fisher’s exact test (lowest 1-sided value multiplied by 2) was used for dichotomous variables and Chi-square test was used for nonordered categorical variables and the Mann–Whitney test was used for continuous variables.
