Control | Cognitive impairment | Statistical test | P | ||
---|---|---|---|---|---|
(n = 44) | (n = 66) | ||||
Gender | Males | 14 (31.8%) | 30 (45.5%) | Chi-square | 0.155 |
Females | 30 (68.2%) | 36 (54.5%) | |||
Age | Mean | 66 | 74 | t | <0.001 |
SD | 6.57 | 6.54 | |||
Education level | ≤9 years | 3 (6.8%) | 11 (16.7%) | Chi-square | 0.113 |
10–12 years | 22 (50.0%) | 34 (51.5%) | |||
>12 years | 19 (43.2%) | 21 (31.8%) | |||
CDR SoB | Mean | 0.23 | 1.96 | t | <0.001 |
SD | 0.1 | 2.16 | |||
HAD Depression score | Mean | 3.79 | 4.18 | t | 0.55 |
SD | 3.56 | 3.06 | |||
HAD Anxiety score | Mean | 6.79 | 6.45 | t | 0.65 |
SD | 4.24 | 3.2 | |||
QPC score | Mean | 1.56 | 2.54 | t | <0.01 |
SD | 1.5 | 1.89 | |||
IQCODE score | Mean | 3.067 | 3.467 | t | <0.001 |
SD | 0.42 | 0.54 | |||
APOEε4 carriers | No | 36 (81.8%) | 36 (54.5%) | Chi-square | <0.01 |
Yes | 8 (18.2%) | 29 (43.9%) | |||
Aβ1–42 pg/ml | Median | 1053 | 668.75 | U | <0.001 |
IQR | 289.6 | 357.8 | |||
tau pg/ml | Median | 209.3 | 394.35 | U | <0.001 |
IQR | 115.4 | 361.3 | |||
ptau-181 pg/ml | Median | 46.5 | 62.3 | U | <0.001 |
IQR | 25.2 | 44.5 | |||
tau/Aβ1–42 pg/ml | Median | 0.219 | 0.554 | U | <0.001 |
IQR | 0.115 | 0.765 | |||
ptau-181/Aβ1–42 pg/ml | Median | 0.047 | 0.101 | U | <0.001 |
IQR | 0.02 | 0.097 |