Mutual comparisons of NAAx levels at baseline (P values)a
| PLS | ALS-L | ALS-B | |
|---|---|---|---|
| ALS-L | P = .024 | NA | NS |
| ALS-B | P = .002 | NS | NA |
| PMA | P < .001 | P = .033 | P = .043 |
a P values result from the Mann-Whitney U test for nonparametric data. Statistical significance was set at P <.05. Mean values ± SD of NAAx level per group at baseline are shown in Table 1.