Table 3 Results of analysis of variance models per brain region of interest of the differences in fiber density between COVID-19 patients (n = 18) and healthy controls (n = 17).
Brain region | Estimate (SE) | Adjusted R-squared | Significance level | Effect size [95% CI] (Hedges’ s g) | |
|---|---|---|---|---|---|
Corpus callosum | |||||
Motor segment | Intercept | 0.730 (0.012) | 0.153 | < 0.001 | 0.884 [0.180–1.589] |
Group | −0.043 (0.016) | 0.012 | |||
Parietal segment | Intercept | 0.597 (0.013) | 0.038 | < 0.001 | 0.507 [−0.178 to 1.188] |
Group | −0.027 (0.018) | 0.136 | |||
Premotor area & SMA | Intercept | 0.682 (0.015) | −0.009 | < 0.001 | 0.276 [−0.401 to 0.950] |
Group | −0.018 (0.021) | 0.412 | |||
Corticospinal tract | |||||
Left corticospinal tract | Intercept | 0.663 (0.014) | −0.030 | < 0.001 | 0.049 [−0.624 to 0.721] |
Group | −0.003 (0.019) | 0.883 | |||
Right corticospinal tract | Intercept | 0.653 (0.011) | −0.014 | < 0.001 | −0.242 [−0.916 to 0.433] |
Group | 0.011 (0.016) | 0.470 | |||
Medial lemniscus | |||||
Left medial lemniscus | Intercept | 0.621 (0.012) | 0.014 | < 0.001 | 0.401 [−0.278 to 1.080] |
Group | −0.021 (0.017) | 0.234 | |||
Right medial lemniscus | Intercept | 0.639 (0.010) | 0.021 | < 0.001 | 0.433 [−0.247 to 1.113] |
Group | −0.018 (0.014) | 0.199 | |||
Whole pyramidal tract | |||||
Left pyramidal tract | Intercept | 0.605 (0.011) | −0.030 | < 0.001 | −0.014 [−0.687 to 0.658] |
Group | 0.001 (0.016) | 0.965 | |||
Right pyramidal tract | Intercept | 0.614 (0.011) | −0.017 | < 0.001 | −0.213 [−0.887 to 0.461] |
Group | 0.010 (0.015) | 0.524 | |||
