Table 2.
Study participant characteristics (N = 150).
| NBP* (N = 91) | HBPrx* (N = 35) | HBP* (N = 24) | |
|---|---|---|---|
| Age (years), mean ± sd | 37 ± 9 | 41 ± 9 | 38 ± 10 |
| Gender, n (%) | |||
| Female | 55 (60) | 27 (77) | 11 (46%) |
| Male | 36 (40) | 8 (23) | 13 (54%) |
| Race, n (%) | |||
| Black | 39 (43) | 19 (54) | 14 (58) |
| Non-black** | 52 (57) | 16 (46) | 10 (42) |
| BMI (kg/m2), mean ± sd | 27.9 ± 6.7 | 33.5 ± 8.0 | 32.1 ± 7.1 |
| BMI (kg/m2), n (%) | |||
| Normal weight (18.5 ≤ BMI ≤ 24.9) | 36 (39) | 3 (9) | 3 (13) |
| Overweight (25.0 ≤ BMI ≤ 29.9) | 29 (32) | 14 (40) | 7 (29) |
| Obese (30.0 ≤ BMI) | 26 (29) | 18 (51) | 14 (58) |
| SBP (mm Hg), mean ± sd | 114 ± 9 | 129 ± 10 | 138 ± 8 |
| DBP (mm Hg), mean ± sd | 70 ± 7 | 76 ± 8 | 79 ± 10 |
| Capillary densities (capillaries/mm2), mean ± sd | |||
| Baseline | 55 ± 15 | 52 ± 15 | 58 ± 19 |
| Postocclusive reactive hyperemia | 67 ± 17 | 59 ± 16 | 66 ± 20 |
| Venous occlusion (maximal) | 72 ± 18 | 71 ± 19 | 78 ± 20 |
| % Capillary recruitment, mean ± sd | 16.5 ± 7.1 | 9.5 ± 5.2 | 9.9 ± 4.8 |
| % Perfused capillaries, mean ± sd | 92.5 ± 5.3 | 82.6 ± 7.2 | 83.9 ± 9.0 |
| FBFmax/FBFbase, mean ± sd | 9.2 ± 3.1 | 5.9 ± 2.4 | 6.9 ± 2.2 |
| FVRmax, mean ± sd | 3.3 ± 1.6 | 5.9 ± 4.3 | 4.8 ± 2.0 |
*
NBP: normal blood pressure; HBPrx: high blood pressure, treated; HBP: high blood pressure, untreated.
**
Mostly Caucasians (N = 62), but also including Hispanics (N = 11) and Asians (N = 5).