Table 4.

Summary table of subcortical volume-of-interest-based random intercept mixed linear models of regional k₃

Region	β visit	Std. error	CI 2.5%	CI 97.5%	R 2	R 2 adjusted	χ 2	P
Amygdala	−0.70	0.23	−1.15	−0.26	0.80	0.77	7.51	0.02
Insula	−0.82	0.22	−1.26	−0.38	0.80	0.77	9.76	0.01
Thalamus	−0.29	0.21	−0.71	0.13	0.81	0.78	1.67	0.43
Hippocampus	−0.17	0.23	−0.61	0.28	0.77	0.74	0.53	0.77

β coefficients are presented for the fixed effect of visit, with standard error of the coefficient and 95% confidence interval (CI) included. χ² values obtained with likelihood ratio test were used to derive P-values for the visit models. No family-wise error rate correction was employed due to the exploratory nature of this post hoc analysis.