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Table 1 Maternal demographic characteristics and serum magnesium levels of the patients in two groups

From: Risk factors for sub–therapeutic serum concentrations of magnesium sulfate in severe preeclampsia of Chinese patients

Variables Standard group
(N = 41)
Sub–standard group
(N = 52)
P-value
Age (years) 28.00 (26.00, 33.50) 31.00 (28.25, 35.00) 0.078
Height (cm) 159.4 ± 4.4 160.8 ± 5.4 0.109
Weight (kg) 70.00 (65.00, 74.65) 71.80 (67.08, 84.50) 0.048
BMI (kg/m2) 27.79 (25.64, 29.43) 29.40 (25.67, 31.63) 0.090
Gestational age (weeks) 31.96 ± 3.65 32.48 ± 4.13 0.285
Ccr (mL/min) 127 (97, 155) 162 (132, 189) 0.000
ALT (U/L) 28.00 (21.50, 43.00) 24.50 (20.00, 37.50) 0.200
AST (U/L) 30.00 (22.00, 35.50) 26.50 (23.00, 36.50) 0.007
Albumin (g/L) 27.2 (24.6, 30.2) 28.1 (26.5, 31.8) 0.084
Baseline serum magnesium concentrations (mmol/L) 0.76 (0.71, 0.84) 0.73 (0.68, 0.81) 0.094
Measurement time (h) 5.00 (1.00, 7.00) 1.00 (0.50, 6.00) 0.013
Loading dose 5 g    0.087
 Given (n) 18 (43.90%) 14 (26.92%)  
 Not given (n) 23 (56.10%) 38 (73.08%)  
  1. BMI Body mass index, Ccr Creatinine clearance, ALT Alanine aminotransferase, AST Aspartate aminotransferase