Table 3. Comparison of Clinical Characteristics and Time Logistics in Patients Treated With EVT and IVT Before and After the Stockholm Stroke Triage System.
| Characteristic | SSTS | Pre-SSTS | P value | ||
|---|---|---|---|---|---|
| No./total No. (%) | Median (IQR) | No./total No. (%) | Median (IQR) | ||
| EVT | |||||
| Age, y | 119/119 (100.0) | 74 (62-81) | 105/105 (100.0) | 71 (59-78) | .17 |
| Female sex | 55/119 (46.2) | NA | 44/105 (41.9) | NA | .52 |
| NIHSS score | 119/119 (100.0) | 16 (12-21) | 101/105 (96.2) | 17 (12-20) | .74 |
| Known exact time of onset, min | 77/119 (64.7) | NA | 75/105 (71.4) | NA | .28 |
| IVT prior to EVT | 60/119 (50.4) | NA | 53/10 (50.5)5 | NA | .99 |
| OTD, min (known onset) | 77/119 (64.7) | 66 (51-87) | 75/105 (71.4) | 56 (40-104) | .05 |
| OPT, min (known onset) | 77/119 (64.7) | 137 (118-180) | 75/105 (71.4) | 206 (160-280) | <.001 |
| DPT, min | 119/119 (100.0) | 57 (40-72) | 105/105 (100.0) | 45 (37-60) | .01 |
| Direct to CSC | 87/119 (73.1) | NA | 25/105 (23.8) | NA | <.001 |
| Secondary transport | 32/119 (26.9) | NA | 80/105 (76.2) | NA | <.001 |
| IVT | |||||
| Age | 337/337 (100.0) | 75 (64-82) | 360/360 (100.0) | 75 (66-84) | .13 |
| Female sex | 158/337 (46.9) | NA | 183/360 (50.8) | NA | .30 |
| NIHSS score | 335/337 (99.4) | 7 (4-13) | 357/360 (99.2) | 7 (4-13) | .39 |
| ODT, min. | 336/337 (99.4) | 73 (54-115) | 360/360 (100.0) | 70 (48-107) | .03 |
| ONT, min | 327/337 (97.0) | 115 (83-164) | 358/360 (99.4) | 115 (85-161) | .79 |
| DNT, min | 330/337 (97.9) | 29 (16-49) | 358/360 (99.4) | 38 (26-54) | <.001 |
| ODT, min (CSC) | 116/337 (34.4) | 69 (51-97) | 45/360 (12.5) | 67 (43-114) | .32 |
| DNT, min (CSC) | 116/337 (34.4) | 13 (10-18) | 45/360 (12.5) | 31 (19-38) | <.001 |
Abbreviations: AIS, acute ischemic stroke; A2L2, arm 2 or more points and leg 2 or more points (moderate to severe hemiparesis); CSC, comprehensive stroke center; CTA, computed tomographic angiography; DNT, door-to-needle time for IVT; DPT, CSC door-to-puncture time for EVT; EVT, endovascular thrombectomy; IQR, interquartile range; IVT, intravenous thrombolysis; LAO, large-artery occlusion; NA, not applicable; NIHSS, National Institutes of Health Stroke Scale; ODT, onset-to-first-hospital-door time; ONT, onset-to-needle time for IVT; OPT, onset-to-puncture time for EVT; SSTS, Stockholm Stroke Triage System.