Table 1 Clinical characteristics of participants
| Â | Placebo | Green tea |
|---|---|---|
Number of subjects | 16 | 17 |
Age, mean ± SD | 87.9 ± 5.6 | 81.8 ± 11.1 |
Sex, n (%) | ||
 Men | 1 (6.3) | 3 (17.6) |
 Women | 15 (93.7) | 14 (82.4) |
BMI, mean ± SD | 21.6 ± 3.3 | 22.6 ± 2.8 |
Underlying diseases, n (%) | Â | Â |
 Alzheimer’s disease | 8 (50.0) | 9 (52.9) |
 Vascular dementia | 8 (50.0) | 7 (41.2) |
 Dementia with Lewy bodies | 0 (0.0) | 1 (5.9) |
CT/MRI | ||
 CT | 15 (93.8) | 17 (100.0) |
 CT, MRI | 1 (6.2) | 0 (0.0) |
 MMSE-J score, mean ± SD | 15.7 ± 4.4 | 15.9 ± 6.3 |
Complications, n (%) | ||
 Hypertension | 9 (56.3) | 13 (76.5) |
 Dyslipidaemia | 7 (43.8) | 3 (17.6) |
 Diabetes | 4 (25.0) | 5 (29.4) |
Concomitant drugs, n (%) | ||
 Antihypertensive drugs | 12 (75.0) | 13 (76.5) |
 Antidyslipidemic drugs | 5 (31.3) | 2 (11.8) |
 Antidiabetic drugs | 4 (25.0) | 4 (23.5) |
 Dementia therapeutic drugs | 3 (18.8) | 2 (11.8) |
Activities of daily living, n (%) | ||
 Independent | 4 (25.0) | 5 (29.4) |
 Some assistance necessary | 12 (75.0) | 11 (64.7) |
 Full assistance necessary | 0 (0.0) | 1 (5.9) |
Daily tea consumption | 16 (100.0) | 17 (100.0) |
 Green tea, n (%) | 16 (100.0) | 17 (100.0) |
 Other, n (%) | 5 (31.3) | 7 (41.2) |
Alcohol use, n (%) | 0 (0.0) | 1 (5.9) |
Smoking, n (%) | 1 (6.3) | 2 (11.8) |
Dietary supplement consumption, n (%) | 0 (0.0) | 0 (0.0) |