| 
      Data are mean ± SD, * n (%). Unpaired Student’s t-test; Mann-Whitney U-test;
    Chi-square test, Fisher’s exact test. SBP = systolic blood pressure; DBP = diastolic
    blood pressure.
        |  | Severe Preeclamptic | Healthy Parturients | P |  
        | Baseline SBP (mmHg) | 158.2 ± 19.9 | 141.1 ± 18.9 | 0.009 # |  
        | Lowest SBP (mmHg) | 114.1 ± 18.4 | 107.6 ± 16.7 | 0.25 # |  
        | SBP decrease (%) | -27. 6 ± 10.3 | -24.2 ± 12.4 | 0.21 # |  
        | Baseline DBP (mmHg) | 92.2 ± 11.9 | 85.5 ± 12.4 | 0.09 # |  
        | Lowest DBP (mmHg) | 61.2 ± 11.4 | 54.2 ± 10.1 | 0.047 # |  
        | Mean total ephedrine dose (mg) | 11.0 ± 9.5 | 12.2 ± 11.4 | 0.83 # |  
        | Hypotension, n (%) | 16 (84%) | 14 (70%) | 0.45 * |  |