|   | 
        Group    I | 
        Group    II | 
        p-value | 
       
      
        | Characteristics | 
          | 
          | 
          | 
       
      
        | Sex (numbers) | 
        Male (52),female(48) | 
        Male (51),female(49) | 
          | 
       
      
        | Age, Years  mean ± SD | 
        53.1 ± 9.7 | 
        52.7 ± 10.6 | 
        p=0.486 | 
       
      
        | Baseline    adjustments | 
          | 
          | 
          | 
       
      
        | Blood    pressure | 
          | 
          | 
          | 
       
      
        | Average, mmHg (mean ± SD) | 
          | 
          | 
          | 
       
      
        | SBP | 
        143. ± 11.8 | 
        145.7 ± 10.9  | 
        p= 0.541 | 
       
      
        | DBP | 
        86.2 ± 7.2 | 
        85.1 ± 8.6  | 
        p= 0.379 | 
       
      
        | Daytime, mmHg (mean ± SD) | 
          | 
          | 
          | 
       
      
        | SBP | 
        155.2 ± 10. | 
        156.5 ± 11.8 | 
        p= 0.492 | 
       
      
        | DBP | 
        96.8 ± 8.1 | 
        94.7 ± 7.7  | 
        p= 0.358 | 
       
      
        | Nocturnal mmHg (mean ± SD) | 
          | 
          | 
          | 
       
      
        | SBP | 
        130.6 ± 11.4 | 
         133.0 ± 11.7  | 
        p= 0.621 | 
       
      
        | DBP | 
        75.3 ± 6.8 | 
         76.2 ± 7.1  | 
        p= 0.577 | 
       
      
        | Morning mmHg (mean ± SD) | 
          | 
          | 
          | 
       
      
        | SBP | 
        157.3 ± 11.6 | 
        158.0 ± 10.4 | 
        p= 0.396 | 
       
      
        | DBP | 
        98.6 ± 7.3 | 
        97.9 ± 7.5  | 
        p= 0.439 | 
       
      
        | Serum    Lipids Level | 
          | 
          | 
          | 
       
      
        | TG, mmol/L, mean ± SD | 
        2.02 ± 1.34 | 
        1.98 ± 1.72 | 
        p= 0.386 | 
       
      
        | TC, mmol/L, mean ± SD | 
        5.99 ± 1.62  | 
        6.01 ± 1.36  | 
        p= 0.692 | 
       
      
        | LDL-C, mmol/L, mean ± SD | 
        3.96 ± 1.45  | 
        4.11 ± 1.54  | 
        p= 0.414 | 
       
      
        | HDL-C, mmol/L, mean ± SD | 
        1.19 ± 0.49 | 
        1.22 ± 0.55  | 
        p= 0.583 | 
       
      
        | Other    risk factors | 
          | 
          | 
          | 
       
      
        | Smokers, numbers | 
        40 | 
        38 | 
          | 
       
      
        | Diabetes mellitus, number | 
        42 | 
        48 | 
          | 
       
      
        | CHD, number | 
        37 | 
        32 | 
          | 
       
      |