Table 4.

Ambulatory BP parameters by groupa

ParameterSustained Normotension(n = 95)White-Coat Hypertension(n = 39)Masked Hypertension(n = 20)Sustained Hypertension(n = 24)
Mean 24-h
    SBP113 ± 7117 ± 6c128 ± 6129 ± 8
    DBP70 ± 573 ± 4c81 ± 284 ± 5
Awake
    SBP117 ± 8122 ± 6c133 ± 6134 ± 9
    DBP74 ± 677 ± 6c84 ± 388 ± 5e
Asleep
    SBP103 ± 8107 ± 9d115 ± 10117 ± 8
    DBP62 ± 664 ± 5d72 ± 873 ± 7
Nocturnal dipb11.5 ± 5.512.8 ± 5.513.1 ± 5.812.6 ± 5.1
  • a Data are means ± SD.

  • b Defined as (awake SBP − asleep SBP)/awake SBP × 100%.

  • c P < 0.05 for white-coat hypertension versus sustained normotension.

  • d P < 0.005 for white-coat hypertension versus sustained normotension.

  • e P < 0.05 for sustained hypertension versus masked hypertension.