Table 4 Simple linear regression analysis results of the association between cognition and plasma BDNF levels, IQ, tobacco use and alcohol use in the healthy control group
Similarities | Digit-symbol coding | Logical memory learning curve | Verbal paired associates I learning curve | Verbal paired associates II | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
r 2 | ß(P) | r 2 | ß(P) | r 2 | ß(P) | r 2 | ß(P) | r 2 | ß(P) | |
BDNF plasma levels | −0.026 | 0.091 | −0.011 | −0.150 | −0.034 | −0.012 | −0.034 | 0.010 | 0.035 | −0.260 |
(0.626) | (0.421) | (0.947) | (0.957) | (0.159) | ||||||
Wechsler Vocabulary (IQ) | 0.332 | 0.591 | 0.137 | 0.401 | −0.027 | 0.030 | −0.014 | −0.115 | −0.026 | 0.044 |
(0.000) | (0.013) | (0.859) | (0.493) | (0.791) | ||||||
Tobacco use | 0.021 | 0.218 | 0.086 | −0.332 | −0.027 | −0.027 | −0.013 | 0.122 | 0.107 | 0.363 |
(0.188) | (0.042) | (0.870) | (0.466) | (0.025) | ||||||
Alcohol use | −0.052 | 0.060 | 0.166 | −0.458 | −0.043 | 0.108 | −0.042 | 0.114 | −0.033 | 0.148 |
(0.801) | (0.042) | (0.651) | (0.631) | (0.534) | ||||||