Table 1.
Demographic, physical examination, and laboratory characteristics of the study subjects
| Normotensive (n = 1,528) | Hypertensive (n = 303) | Hypertensive, renin >5 mU/L (n = 210) | Hypertensive, renin ≤5 mU/L (n = 93) | |
|---|---|---|---|---|
| Age in years, mean (SD) | 55.1 (9.0) | 60.3 (8.9) | 60.1 (9.3) | 60.6 (7.9) |
| Male, No. (%) | 707 (46.3) | 161 (53.1) | 127 (60.5) | 34 (36.6) |
| Body mass index, kg/m2, mean (SD) | 26.7 (4.4) (n = 1,524) | 28.0 (4.9) | 28.0 (4.9) | 28.0 (4.9) |
| Systolic blood pressure, mm Hg, mean (SD) | 118 (11.5) | 152 (13.9) | 150.6 (12.5) | 154.5 (15.8) |
| Diastolic blood pressure, mm Hg, mean (SD) | 73 (7.7) | 85 (9.6) | 84.6 (9.6) | 84.5 (9.8) |
| Current smoking, No. (%) | 268 (17.5) | 50 (16.5) | 32 (15.2) | 18 (19.4) |
| Urine sodium/creatinine, mmol/g, mean (SD) | 109.8 (71.0) (n = 1,326) | 118.0 (73.9) (n = 262) | 109.9 (68.8) | 136.2 (81.7) |
| Family history of hypertension, No. (%) | 736/1,159 (63.5) | 152/221 (68.8) | 106/159 (66.7) | 46/62 (74.2) |