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Comparison of disease duration and ARR between patients with and without PCE during an acute attack
| PCE Present | PCE Absent | P Value | |
|---|---|---|---|
| Disease duration (mean) (yr) | 4.76 ± 4.81 (n = 21) | 7.26 ± 5.75 (n = 38) | .05 |
| ARR (mean) | 1.30 ± 0.83 (n = 14) | 0.74 ± 0.49 (n = 45) | .03a |
Note:—PCE indicates periependymal contrast enhancement.
P < .05, based on the Mann-Whitney test.
