Summary of characteristics of 3 groups of patients based on signal change in the DVA territory (n = 164)
| No Signal Change (n = 136) | Signal Change (n = 28) | Excluding Other Extensive Signal Changes (n = 21)* | ||||
|---|---|---|---|---|---|---|
| Age† | 46 (17, 87) | 53‖ (23, 83) | 53‖ (23, 83) | |||
| Female‡ | 78 | 57.35% | 17 | 60.71% | 13 | 61.90% |
| White matter diseaseठ| ||||||
| None | 55 | 40.44% | 8 | 28.57% | 6 | 28.57% |
| Minimum | 51 | 37.50% | 3 | 10.71% | 3 | 14.29% |
| Mild | 14 | 10.29% | 5 | 17.86% | 5 | 23.81% |
| Moderate | 13 | 9.56% | 9 | 32.14% | 6 | 28.57% |
| Severe | 3 | 2.21% | 3 | 10.71% | 1 | 4.76% |
| No. of DVAs‡ | ||||||
| 1 | 126 | 92.65% | 28 | 100% | 21 | 100% |
| 2 | 9 | 6.62% | 0 | 0% | 0 | 0% |
| 3 | 1 | 0.74% | 0 | 0% | 0 | 0% |
Note:—White matter disease indicates degree of overall white matter signal abnormalities as outlined in the Results section.
* Seven cases with very extensive additional non-DVA-associated white matter signal change were excluded from analysis.
† Values in cells are medians (ranges).
‡ Values in cells are frequency in count and percentage.
§ White matter disease is associated with signal change in the DVA drainage territory (P < .05 using a χ2 test).
‖ Median in the signal-change group is different from that of no-signal-change group, with P < .05, using a Wilcoxon rank sum test.