Table 1 Study population characteristics
Characteristic | Overall | In-hospital IBP, unmatched sample | Prehospital IBP, unmatched sample | In-hospital IBP, matched sample | Prehospital IBP, matched sample |
|---|---|---|---|---|---|
n | 100 | 33 | 67 | 33 | 33 |
Age [years] – median (25 th to 75 th percentile) | 72 (61–80) | 71 (62–79) | 72 (59–81) | 71 (62–79) | 72 (61–80) |
Male sex – n (%) | 57 (57) | 21 (64) | 36 (54) | 21 (64) | 19 (58) |
Initial Glasgow Coma Scale – median (25 th to 75 th percentile) | 5 (4–7) | 5 (4–7) | 5 (4–7) | 5 (4–7) | 5 (4–7) |
Mode of Transport – n (%) | |||||
Ground based | 75 (75) | 21 (64) | 54 (81) | 22 (67) | 24 (73) |
HEMS | 25 (25) | 12 (36) | 13 (19) | 11 (33) | 9 (27) |
Prehospital vasopressor usage – n (%) | 49 (49) | 17 (52) | 32 (48) | 17 (52) | 16 (48) |
Prehospital fluid volume [ml] –median (25 th to 75 th percentile) | 500 (500–1000) | 500 (500–1000) | 500 (500–1000) | 500 (500–1000) | 500 (500–1000) |
In-hospital diagnosis – n (%) | |||||
Hemorrhagic stroke | 55 (55) | 16 (48) | 39 (58) | 16 (48) | 16 (48%) |
Ischemic stroke | 19 (19) | 7 (21) | 12 (18) | 7 (21) | 7 (21%) |
Other | 26 (26) | 10 (33) | 16 (24) | 10 (33) | 10 (30%) |