Table 2 Baseline cognitive test (median) scores by tea group
Low Tea Consumption (n = 213) | High Tea Consumption (n = 463) | p-value* | |
|---|---|---|---|
Global Cognitive Function | |||
MMSE (IQR) | 28 (26, 29) | 28 (26, 29) | 0.168 |
Memory | |||
Memory (SI) Index (IQR) | 0.61 (0.47, 0.71) | 0.60 (0.47, 0.75) | 0.462 |
Attention | |||
Power of Attention IQR) | 1.49 (1.35, 1.68) | 1.47 (1.35, 1.66) | 0.442 |
Continuity of Attention (IQR) | 87.84 (80.67, 91.67) | 87.17 (80.84, 100.00) | 0.491 |
Response Time Variability (IQR) | 0.06 (0.52, 0.07) | 0.59 (0.05, 0.07) | 0.675 |
Speed | |||
Simple RT, sec (IQR) | 0.39 (0.34, 0.49) | 0.38 (0.34, 0.46) | 0.149 |
Choice RT, sec (IQR) | 0.57 (0.52, 0.65) | 0.57 (0.52, 0.64) | 0.385 |
Digit Vigilance RT, sec (IQR) | 0.52 (0.48, 0.56) | 0.51 (0.47, 0.56) | 0.886 |
Word recognition RT, sec (IQR) | 1.31 (1.08, 1.85) | 1.28 (1.07, 1.70) | 0.212 |