WMH measurement characteristics of the study sample
| WMH measurement | Mean (SD) | Median (IQR) |
|---|---|---|
| Baseline | ||
| Visual rating scale* (points) | 10.5 (7.8) | 9.0 (5.0–14.8) |
| Volumetric measurement (mL) | 6.5 (11.8) | 1.4 (0.4–6.4) |
| Follow-up | ||
| Visual rating scale* (points) | 11.5 (7.9) | 9.0 (6.0–16.0) |
| Volumetric measurement (mL) | 8.8 (14.1) | 2.8 (0.6–10.2) |
| Increase | ||
| Visual rating scale* (points) | 1.0 (3.5) | 1.0 (−1.0–3.0) |
| Volumetric measurement (mL) | 2.3 (3.6) | 1.1 (0.1–2.7) |
* Note:— Scheltens scale. WMH indicates white matter hyperintensities; IQR, interquartile range.