Table 1.
Baseline Characteristics of Subjects, N=457
| Mean ± SD or % |
Range Min, Max |
|
|---|---|---|
| Age, years | 67.0 ± 9.2 | 33, 88 |
| Sex, male % | 37.6 | |
| Body mass index, kg/m2 | 23.9 ± 3.5 | 15.4, 46.3 |
| Current smoking, % | 24.9 | |
| Type 2 diabetes, % | 44.2 | |
| Duration of hypertension, years | 6.2 ± 7.4 | 0, 54 |
| Antihypertensive medications, % | 55.6 | |
| Total cholesterol, mg/dl | 203 ± 35 | 101, 306 |
| Triglycerides, mg/dl | 124 ± 65 | 36, 400 |
| Creatinine, mg/dl | 0.77 ± 0.21 | 0.30, 1.79 |
| Clinic systolic BP, mmHg | 154 ± 20 | 100, 210 |
| Clinic diastolic BP, mmHg | 84 ± 12 | 47, 116 |
| 24hr systolic BP, mmHg | 140 ± 17 | 99, 199 |
| 24hr diastolic BP, mmHg | 79 ± 10 | 55, 106 |
| 24hr pulse rate, bpm | 68 ± 9 | 42, 98 |
| Awake systolic BP, mmHg | 146 ± 18 | 102, 213 |
| Awake diastolic BP, mmHg | 83 ± 10 | 56, 110 |
| Awake pulse rate, bpm | 72 ± 9 | 43, 103 |
| Sleep systolic BP, mmHg | 129 ± 19 | 85, 187 |
| Sleep diastolic BP, mmHg | 73 ± 10 | 47, 103 |
| Sleep pulse rate, bpm | 61 ± 9 | 38, 93 |
| Night/day ratio of SBP | 0.89 ± 0.09 | 0.60, 1.26 |
| BPV (sd) of clinic systolic BP, mmHg | 13.7 ± 4.6 | 2.9, 40.9 |
| BPV (sd) of clinic diastolic BP, mmHg | 8.2 ± 2.9 | 0, 33.2 |
| BPV (sd) of Awake systolic BP, mmHg | 17.7 ± 5.2 | 7.9, 36.4 |
| BPV (sd) of Awake diastolic BP, mmHg | 10.5 ± 2.5 | 5.1, 19.8 |
| BPV (sd) of Sleep systolic BP, mmHg | 12.9 ± 4.5 | 4.2, 30.5 |
| BPV (sd) of Sleep diastolic BP, mmHg | 8.6 ± 2.6 | 0, 21.1 |
BP, blood pressure; BPV, blood pressure variability; SD, standard deviation