Statistical table for observational cohort analyses
| Data structure | Type of test | Power | |
|---|---|---|---|
| Cross-sectional group difference in ELC (12–24 months of age) | Normal distribution | t test | 0.72 |
| Association between MWF and SM content (12–24 months) | Normal distribution | Spearman’s rank-order | 0.56 |
| Association between SM content and VDQ development | Normal distribution | Pearson’s r | 0.5 |
| Association between SM content and temporal WM β | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and temporal WM γ | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and parietal WM β | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and parietal WM γ | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and parietal WM δ | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and occipital WM β | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and cerebellar WM α | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and cerebellar WM β | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and cerebellar WM γ | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and CC body β | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and CC body γ | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and CC body δ | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and CC genu β | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and CC genu δ | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and CC splenium β | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and CC splenium γ | Normal distribution | Pearson’s r | >0.90 |
| Association between SM content and CC splenium δ | Normal distribution | Pearson’s r | >0.90 |