Table 1.
Baseline characteristics by tea consumption in 1,545 older people.
| Characteristics |
Tea drinker (n = 793) |
Non-tea drinker (n = 752) |
X2 OR T | P |
|---|---|---|---|---|
| Age, y | 70.14 ± 7.68 | 70.55 ± 7.43 | −1.005 | 0.315 |
| Education, y | 5.96 ± 3.43 | 7.88 ± 3.26 | −11.24 | <0.001* |
| Baseline MoCA | 23.27 ± 4.85 | 22.85 ± 5.18 | 1.621 | 0.105 |
| Follow-up of MoCA | 23.51 ± 5.01 | 22.64 ± 5.70 | 3.181 | 0.001* |
| MoCA change value | 0.22 ± 3.24 | −0.21 ± 3.97 | 2.306 | 0.021* |
| GDS | 3.62 ± 3.86 | 3.75 ± 4.06 | −0.667 | 0.505 |
| Type of tea | ||||
| Green tea, n (%) | 478 (60.3) | |||
| Red tea, n (%) | 68 (8.6) | |||
| Oolong tea, n (%) | 20 (2.5) | |||
| Scented tea, n (%) | 105 (13.2) | |||
| Two or more, n (%) | 122 (15.4) | |||
| The frequency of drinking tea | ||||
| Occasionally | 69 (8.7) | |||
| 1–3 times a week | 75 (9.5) | |||
| 4–6 times a week | 48 (6.1) | |||
| Everyday | 601 (75.8) | |||
| Duration, y | 29.71 ± 17.25 | |||
| Male, n (%) | 499 (62.9) | 253 (33.6) | 132.474 | <0.001* |
| Smoker, n (%) | 331 (41.7) | 112 (14.9) | 136.023 | <0.001* |
| Drinker, n (%) | 373 (47.0) | 356 (47.3) | 0.014 | 0.919 |
| Take exercise, n (%) | 623 (78.6) | 549 (73.0) | 6.508 | 0.012* |
| Hobby, n (%) | 539 (68.0) | 461 (61.3) | 7.513 | 0.007* |
| Napping, n (%) | 460 (58.0) | 420 (55.9) | 0.732 | 0.411 |
| Hypertension, n (%) | 373 (47.0) | 356 (47.3) | 0.014 | 0.919 |
| Diabetes, n (%) | 114 (14.4) | 114(15.2) | 0.188 | 0.668 |
MoCA, Montreal Cognitive Assessment; GDS, Geriatric depression scale;
*
p < 0.05.