Table I.
Comparison of baseline characteristics
| Variables | < 130/80 mm Hg (n = 366) | < 140/90 mm Hg (n = 570) | ≥ 140/90 mm Hg (n = 290) |
|---|---|---|---|
| Age [years] | 56.3 ±9.2 | 59.2 ±10.4 | 62.5 ±11.2* |
| Male, n (%) | 195 (53.3) | 308 (54) | 157 (54.1) |
| Body mass index [kg/m2] | 24.4 ±4.9 | 25.6 ±4.5 | 25.0 ±4.2 |
| Systolic blood pressure [mm Hg] | 148 ±7 | 152 ±6 | 158 ±13* |
| Diastolic blood pressure [mm Hg] | 84 ±10 | 91 ±12 | 99 ±11* |
| Current smokers, n (%) | 106 (29) | 174 (30.5) | 102 (35.2)* |
| Dyslipidemia, n (%) | 124 (33.9) | 196 (34.4) | 100 (34.5) |
| Diabetes mellitus, n (%) | 130 (35.6) | 208 (36.5) | 117 (40.3)* |
| Hypertension duration [years] | 8.4 ±3.0 | 8.9 ±2.9 | 9.7 ±3.4* |
| Total cholesterol [mmol/l] | 5.0 ±0.7 | 5.1 ±0.4 | 5.1 ±0.6 |
| Triglyceride [mmol/l]# | 1.08 (0.75–2.11) | 1.12 (0.94–2.16) | 1.1 (0.83–2.19) |
| Fasting plasma glucose [mmol/l] | 5.8 ±0.8 | 5.9 ±1.0 | 5.8 ±0.9 |
| Glycated hemoglobin A1c (%) | 6.3 ±1.0 | 6.2 ±1.1 | 6.1 ±1.2 |
| Creatinine [µmol/l] | 70.3 ±26.7 | 72.5 ±23.6 | 74.8 ±27.7 |
| Glomerular filtration rate [ml/min/1.73 m2] | 79.2 ±10.7 | 76.1 ±12.3 | 74.3 ±10.8* |
| Ischemic stroke, n (%) | 93 (26.2) | 157 (27.5) | 90 (31.0)* |
| Coronary artery disease, n (%) | 40 (10.9) | 67 (11.8) | 31 (10.7) |
| Chronic heart failure, n (%) | 25 (6.8) | 40 (7.0) | 21 (7.2) |
| Peripheral vascular disease, n (%) | 32 (8.7) | 51 (8.9) | 27 (9.3) |
#
Median and interquartile
*
p < 0.05 vs. < 130/80 mm Hg group.