Ambulatory blood pressure parameters by profile groups in the validation cohort
| Variable | All | Group 1 | Group 2 | Group 3 |
| n=746 | n=265 | n=270 | n=211 | |
| Mean 24-hour SBP, mm Hg | 131.4±17.7 | 129.6±17.4 | 130.1±17.6 | 135.1±17.8* |
| Daytime SBP, mm Hg | 132.1±18.0 | 132.3±18.1 | 130.2±17.6 | 134.6±18.2 |
| Night-time SBP, mm Hg | 129.1±20.3 | 121.9±18.1 | 129.8±20.3* | 137.0±19.6* |
| Morning SBP, mm Hg | 125.9±35.5 | 120.9±31.3 | 132.4±34.7* | 122.6±40.4 |
| Trough SBP, mm Hg | 106.5±35.0 | 102.4±29.6 | 106.8±35.2 | 111.4±40.1* |
| ST-MS, mm Hg | 20.2±28.6 | 19.4±27.2 | 25.3±27.1† | 13.4±31.1 |
| 24-hour SBP variability | 13.9±10.5 | 13.5±10.0 | 13.2±9.9 | 15.3±11.6 |
| Dipping patterns, n (%) | * | * | ||
| Dippers | 106 (14.2) | 75 (28.3) | 20 (7.4) | 11 (5.2) |
| Extreme dippers | 21 (2.8) | 11 (4.1) | 7 (2.6) | 3 (1.4) |
| Non-dippers | 349 (46.8) | 156 (58.9) | 118 (43.7) | 75 (35.6) |
| Reverse dippers | 270 (36.2) | 23 (8.7) | 125 (46.3) | 122 (57.8) |
*P<0.01 compared with group 1.
†P<0.05.
SBP, systolic blood pressure; ST-MS, sleep-trough morning surge.