Table 1 Characteristics of study subjects at baseline
Placebo group (n = 8) | Polyphenol group (n = 7) | p a | |
|---|---|---|---|
Daily dose of Umezu polyphenols (mg) | 0 | 800 | – |
Age (years) | 42.3 (12.2) | 44.3 (13.5) | 0.764 |
Sex: male [n (%)] | 7 (87.5) | 6 (85.7) | 1.000 |
Height (cm) | 169.7 (6.6) | 166.7 (8.0) | 0.437 |
Weight (kg) | 71.4 (17.0) | 69.6 (14.9) | 0.835 |
Body mass index (kg/m2) | 24.5 (4.2) | 24.8 (3.4) | 0.880 |
Waist circumference (cm) | 89.0 (10.9) | 86.4 (13.2) | 0.688 |
Hip circumference (cm) | 100.9 (9.0) | 98.7 (8.2) | 0.637 |
Waist–hip ratio | 0.880 (0.039) | 0.873 (0.095) | 0.870 |
BP and pulse | |||
Examination site | |||
Systolic BP (mmHg) | 133.0 (12.4) | 138.5 (16.4) | 0.468 |
Diastolic BP (mmHg) | 84.3 (10.9) | 89.9 (8.1) | 0.281 |
Pulse (counts/min) | 66.3 (4.4) | 69.9 (3.4) | 0.106 |
Home in the morning | |||
Systolic BP (mmHg) | 129.5 (13.4) | 136.1 (13.3) | 0.358 |
Diastolic BP (mmHg) | 84.0 (7.2) | 89.4 (11.1) | 0.279 |
Pulse (counts/min) | 64.1 (5.4) | 68.5 (6.0) | 0.158 |
Home at night | |||
Systolic BP (mmHg) | 126.4 (14.6) | 135.2 (17.6) | 0.307 |
Diastolic BP (mmHg) | 74.4 (12.8) | 86.1 (12.6) | 0.099 |
Pulse (counts/min) | 71.9 (12.0) | 75.3 (11.4) | 0.592 |