| All | Placebo | Vitamin D | p value | |
| Age, n (%) | ||||
| 18 - 39 y | 20 (15.4) | 10 (15.4) | 10 (15.4) | 0.8756 |
| 40 - 59 y | 92 (70.8) | 47 (72.3) | 45 (69.2) | |
| 60 y and above | 18 (13.9) | 8 (12.3) | 10 (15.4) | |
| Gender, n (%) | ||||
| Male | 79 (60.8) | 38 (58.5) | 41 (63.1) | 0.5900 |
| Female | 51 (39.2) | 27 (41.5) | 24 (36.9) | |
| Body Mass Index Categories, n (%) | ||||
| 25.0 - 29.9 | 30 (23.1) | 18 (27.7) | 12 (18.5) | 0.2117 |
| >30 | 100 (76.9) | 47 (72.3) | 53 (81.5) | |
| Waist Circumference Groups, n (%) | ||||
| Low (<102 for male and <88 for female) | 29 (22.3) | 17 (26.2) | 12 (18.5) | 0.2922 |
| High (>=102 for male and >=88 for female) | 101 (77.7) | 48 (73.9) | 53 (81.5) | |
| Blood Pressure (systolic), mean (SD) | 126.8 (15.7) | 128.5 (15.2) | 125.2 (16.1) | 0.2215 |
| Blood Pressure (Diastolic), mean (SD) | 82.7 (11.1) | 84.5 (10.5) | 80.9 (11.4) | 0.0667 |
| 24-hour Blood Pressure (Systolic), mean (SD) | 130.1 (15.4) | 131.4 (15.4) | 128.8 (15.5) | 0.3418 |
| 24-hour Blood Pressure (Diastolic), mean (SD) | 84.5 (10.8) | 85.6 (11.0) | 83.4 (10.5) | 0.2584 |
| Augmentation Index, mean (SD) | 29.6 (11.6) | 31.0 (12.0) | 28.2 (11.2) | 0.1824 |
| Urine Isoprostane, mean (SD) | 14.6 (13.8) | 14.9 (15.8) | 14.4 (11.6) | 0.8251 |
| Baseline Laboratory, mean (SD) | ||||
| Serum 25(OH)D level, nmol/L | 16.8 (5.1) | 16.5 (5.0) | 17.0 (5.2) | 0.4488 |
| Serum Calcium level, mg/dl | 9.4 (0.4) | 9.3 (0.4) | 9.4 (0.3) | 0.2455 |
| Intact PTH level, pmol/L | 46.7 (27.7) | 49.9 (33.6) | 43.4 (19.9) | 0.1817 |