Comparisons among whole-brain NAA, EDSS, lesion volume on T2-weighted images, and age
| Criterion | P/rS Value | ||
|---|---|---|---|
| Age | EDSSScore | Lesion Volume | |
| Whole-Brain NAA P/rS | .1271/−0.2209 | .9852/−0.0027 | .7620/−0.0443 |
| Age P/rS | −/− | .5375/0.0912 | .3717/0.1304 |
| Expanded Disability Status Scale P/rS | .5375/0.0912 | −/− | .0434/0.2927 |
Note.—Statistics were calculated with non-parametric Spearman correlation coefficient (rS) analysis, showing the P and rS values. Results are significant at P < .05. Note a weak statistical significance only between T2 lesion volume and EDSS score (.0434), but the small associated rS indicates that this correlation accounts for only approximately 10% of the variations in the data.