Unadjusted neuroimaging use for stroke/TIA work-up by sex, age, and race for combined study periods of 2005 and 2010a
| Sex | Age (yr) | Race | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Men (n = 2996) | Women (n = 3906) | P Value | 55 or Younger (n = 1343) | Older Than 55 (n = 5559) | P Value | Black (n = 1355) | White (n = 5505) | P Value | |
| NCCT | 2778 (93%) | 3649 (93%) | .26 | 1265 (94%) | 5162 (93%) | .08 | 1296 (96%) | 5091 (92%) | <.01 |
| MRI | 1633 (55%) | 1983 (51%) | <.01 | 851 (63%) | 2765 (50%) | <.01 | 801 (59%) | 2788 (51%) | <.01 |
| CTA | 163 (5%) | 184 (5%) | .17 | 130 (10%) | 217 (4%) | <.01 | 81 (6%) | 263 (5%) | .07 |
| MRA | 1075 (36%) | 1206 (31%) | <.01 | 569 (42%) | 1712 (31%) | <.01 | 561 (41%) | 1703 (31%) | <.01 |
| Any advanced imaging | 1718 (57%) | 2104 (54%) | <.01 | 916 (68%) | 2906 (52%) | <.01 | 847 (63%) | 2948 (54%) | <.01 |
| Carotid sonography | 1246 (42%) | 1614 (41%) | .82 | 482 (36%) | 2378 (43%) | <.01 | 417 (31%) | 2425 (44%) | <.01 |
↵a Data are No. (%) unless otherwise indicated.