Clinical Study

Magnesium Supplementation and Blood Pressure in Pregnancy: A Double-Blind Randomized Multicenter Study

Table 1

Baseline data (PP).

VariableMagnesium
( = 83)
Placebo
( = 93)
value

Maternal age27.0 (3.4)26.9 (3.5)0.92
27.0 (20.0; 36.0)27.0 (18.0; 36.0)
= 83 = 93

BMI (body mass index)24.7 (4.7)24.1 (3.8)0.62
24.0 (18.0; 43.0)24.0 (18.0; 35.0)
= 83 = 93

Smoking habit14 (16.9%)17 (18.3%)0.96

DBP at week 1267.5 (7.9)67.0 (6.1)0.61
70.0 (50.0; 85.0)70.0 (55.0; 85.0)
= 83 = 93

SBP at week 12114.6 (10.8)112.7 (10.1)0.19
115.0 (90.0; 135.0)110.0 (90.0; 135.0)
= 83 = 93

Gestational length at inclusion12.7 (1.5)12.8 (1.7)0.94
12.6 (9.4; 16.9)12.6 (8.9; 17.7)
= 83 = 93

Extra Mg (mg/day in multivitamin tablets)31.7 (47.5)33.9 (48.3)0.70
0.0 (0.0; 150.0)0.0 (0.0; 150.0)
= 81 = 92

Mg intake (n)

 0 (no)53 (65.4%)58 (63.0%)

 1 (yes)28 (34.6%)34 (37.0%)0.87

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 the Mann–Whitney test was used for continuous variables.