Table 4.
Factors associated with dopamine transporter availability in each striatal subregion by a multiple linear regression analysis in PD patients
| Striatal regions | Variables | Model 2 in PD (n = 138) | ||
|---|---|---|---|---|
| B (SE) | 95%CI | p | ||
| Caudate | Age | − 0.039 (0.026) | (− 0.089, 0.012) | 0.136 |
| Gender | 0.085 (0.094) | (− 0.100, 0.270) | 0.366 | |
| Coffee consumption | − 0.262 (0.088) | (− 0.435, − 0.088) | 0.003 | |
| Smoking history | − 0.402 (0.292) | (− 0.979, 0.175) | 0.170 | |
| Age at onset | 0.029 (0.025) | (− 0.020, 0.078) | 0.238 | |
| Disease duration | 0.001 (0.006) | (− 0.011, 0.014) | 0.829 | |
| Putamen | Age | − 0.014 (0.014) | (− 0.047, 0.022) | 0.326 |
| Gender | 0.034 (0.050) | (− 0.007, 0.243) | 0.505 | |
| Coffee consumption | − 0.067 (0.047) | (− 0.187, 0.047) | 0.156 | |
| Smoking history | − 0.139 (0.157) | (− 0.332, 0.446) | 0.379 | |
| Age at onset | 0.011 (0.013) | (− 0.022, 0.044) | 0.421 | |
| Disease duration | − 0.001 (0.003) | (− 0.014, 0.003) | 0.818 | |
Bold values indicate significant differences (Bonferroni corrected, p < 0.05/2 = 0.025)
PD Parkinson’s disease, B unstandardized B, SE standard error, CI confidence interval