Subgroup analysis of IC for finding categorization
| Finding | Total (%) (No.) | Interval Change (%) (No.) | χ2 Likelihood Ratio | χ2 Likelihood Ratio P Value | IC in the Impression (%) (No.) | χ2 Likelihood Ratio | χ2 Likelihood Ratio P Value |
|---|---|---|---|---|---|---|---|
| Total | 100% (979) | 67.3% (659) | 42.6% (417) | ||||
| Hemorrhage | 13.0% (127) | 95.3% (121) | 67.5 | <.001a | 67.7% (86) | 37.5 | <.001a |
| Infarct/ischemia | 7.0% (69) | 76.8% (53) | 3.2 | .07 | 42.0% (29) | 0.01 | .9 |
| Intracranial mass | 1.4% (14) | 92.9% (13) | 5.4 | .02a | 57.1% (8) | 1.2 | .3 |
| Mass effect | 9.7% (95) | 82.1% (78) | 11.5 | .001a | 54.7% (52) | 6.3 | .01a |
| Microvascular | 16.6% (163) | 50.9% (83) | 22.8 | <.001a | 33.7% (55) | 6.4 | .01a |
| Pneumocephalus | 2.9% (28) | 71.4% (20) | 0.2 | .6 | 46.4% (13) | .2 | .7 |
| Postprocedural | 14.8% (145) | 69.7% (101) | 0.4 | .5 | 41.4% (60) | 0.1 | .7 |
| Sinus | 5.8% (57) | 43.9% (25) | 14.1 | <.001a | 26.3% (15) | 6.9 | .009a |
| Soft-tissue/osseous | 4.5% (44) | 36.4% (16) | 18.5 | <.001a | 11.4% (5) | 21.5 | <.001a |
| Ventricular caliber | 11.6% (114) | 72.8% (83) | 1.8 | .2 | 50.9% (58) | 3.6 | .06 |
| Volume loss | 8.7% (85) | 47.1% (40) | 16.3 | <.001a | 24.7% (21) | 12.9 | <.001a |
| Other | 3.9% (38) | 68.4% (26) | 0.02 | .9 | 39.5% (15) | 0.2 | .7 |
↵a Statistically significant.