Table 4.
Medical outcomes and follow up by epoch and head CT order status at index visit
| Epoch | CT at index | |||||||
|---|---|---|---|---|---|---|---|---|
|
|
|
|||||||
| Overall | Pre-intervention | Post-education | Post-data review | P value1 | Yes | No | P value1 | |
| Outcomes | (n=582) | (n =174) | (n=215) | (n=193) | (n=186) | (n=396) | ||
| Death | 9 (1.5) | 3 (1.7) | 5 (2.3) | 1 (0.5) | 0.337 | 5 (2.7) | 4 (44.4) | 0.153 |
| Missed diagnosis | 10 (1.7) | 2 (1.2) | 6 (2.8) | 2 (1.0) | 0.312 | 3 (1.6) | 7 (70.0) | 0.893 |
| Follow up visit for ED complaint | 305 (52.7) | 93 (53.5) | 110 (51.2) | 102 (52.9) | 0.894 | 109 (59.2) | 196 (64.3) | 0.031 |
| Cranial intervention after ED visit | 21 (3.6) | 8 (4.6) | 8 (3.7) | 5 (2.6) | 0.585 | 9 (4.8) | 12 (57.1) | 0.275 |
| Brain imaging done after ED visit | 172 (29.6) | 56 (32.2) | 68 (31.6) | 48 (24.9) | 0.217 | 69 (37.1) | 103 (59.9) | 0.006 |
| Time to follow up [Median (IQR)]3 | ||||||||
| ED visit | 24 (6–149) | 35 (12–99) | 21 (6–134) | 56 (3–330) | 0.688 | 9 (3–27) | 59 (8–204) | 0.012 |
| Appt-based visit | 22 (6–76) | 25 (7–87) | 22 (7–67) | 17 (4–76) | 0.920 | 26 (9–76) | 19 (5–84) | 0.637 |
ED, emergency department; CT, computed tomography; IQR, interquartile range.
1
Differences in categorical values determined by chi-square analysis or Fisher’s exact test; numerical values by Kruskal-Wallis test.
2
Outcomes were not mutually exclusive. Percentages reported represent column percentages, and chi-square analysis represent differences in each outcome by epoch.
3
Among those with a follow up only.