Table 3 Fixed and random effects and residual standard deviation σ of Bayesian linear mixed effects model of sex as a moderator of age- GABA+/Cr association, adjusted for voxel gray matter fraction (fGM).
Parameter | β | Est. Error | 95% CrI | \(\hat{R}\) | Bulk ESS | Tail ESS |
|---|---|---|---|---|---|---|
Fixed Effects | ||||||
Age | −0.18 | 0.21 | −0.60, 0.27 | 1.00 | 5625 | 3400 |
fGM | 0.14 | 0.16 | −0.19, 0.46 | 1.00 | 7224 | 5389 |
Sex | 0.25 | 0.20 | −0.14, 0.64 | 1.00 | 13,546 | 10,644 |
Age × Sexmale | 0.58 | 0.20 | 0.19, 0.98 | 1.00 | 14,780 | 13,398 |
Random Effects | ||||||
σIntercept | 0.18 | 0.19 | 0.01, 0.71 | 1.00 | 6575 | 7320 |
σAge | 0.27 | 0.24 | 0.01, 0.93 | 1.00 | 5564 | 7234 |
σfGM | 0.19 | 0.20 | 0.01, 0.71 | 1.00 | 7131 | 6827 |
ρIntercept, Age | −0.02 | 0.52 | −0.90, 0.89 | 1.00 | 11,012 | 10,786 |
ρIntercept, fGM | −0.00 | 0.51 | −0.89, 0.89 | 1.00 | 12,912 | 11,281 |
ρAge, fGM | 0.07 | 0.51 | −0.86, 0.91 | 1.00 | 11,764 | 11,031 |
Residual Standard Deviation | ||||||
σ | 0.96 | 0.07 | 0.83, 1.12 | 1.00 | 15,271 | 12,829 |
