Table 4.
Continuous analyses | Categorical analyses | ||||||||
---|---|---|---|---|---|---|---|---|---|
UPSIT score | Hyposmia | Anosmia | |||||||
β | 95% CI | p | β | 95% CI | p | β | 95% CI | p | |
Associations by linear regression (β coefficient) | |||||||||
Hippocampal volume (mL)b,c | − 0.002 | − 0.004, 0.011 | 0.805 | − 0.075 | − 0.200, 0.050 | 0.239 | − 0.162 | − 0.540, 0.217 | 0.401 |
Entorhinal cortex thickness (mm)a,c | 0.001 | − 0.004, 0.006 | 0.671 | 0.010 | − 0.039, 0.059 | 0.693 | − 0.041 | − 0.191, 0.108 | 0.587 |
Cortical thickness (mm)a | 0.001 | − 0.001, 0.003 | 0.156 | − 0.003 | − 0.022, 0.017 | 0.771 | 0.001 | − 0.058, 0.059 | 0.986 |
Global cognitive score (modified PACC)a | − 0.003 | − 0.017, 0.011 | 0.657 | 0.001 | − 0.141, 0.140 | 0.992 | 0.252 | − 0.172, 0.677 | 0.244 |
Associations by generalised linear model (exponentiated β coefficient) | |||||||||
White matter hyperintensity volume (mL)b,d | 0.992e | 0.967, 1.016 | 0.609 | 1.153e | 0.906, 1.468 | 0.247 | 1.280e | 0.624, 2.628 | 0.501 |
aAdjusted for age and sex
bAdjusted for age, sex and total intracranial volume
cExpressed as the mean of right and left
dn = 377 for this outcome
eExpressed as exponentiated β coefficient; value represents the ratio change in WMHV per 1 point increase in UPSIT score, or between groups