Allocation, time intervals and transport distances by road for stroke patients transported by ground (GRD) or by helicopter (AIR) to a stroke centre
| GRD (n=265) | AIR (n=65) | p Value | |
|---|---|---|---|
| Referral | |||
| Field triage, n (%) | 236 (89) | 61 (95) | 0.25 |
| Interhospital transfer, n (%) | 29 (11) | 4 (6) | |
| Thrombolysed, n (%) | 87 (33) | 22 (34) | 0.88 |
| Distance to Thrombolysis centre, (all) km | 67 (42–136) [n=253] | 83 (46–143) [n=63] | <0.01 |
| Distance to stroke centre (field triaged) km | 68 (40–137) [n=225] | 83 (34–153) [n=59] | <0.01 |
| Distance to stroke centre (interhospital transfer) km | 66 (59–109) [n=28] | 87 (66–109) [n=4] | 0.03 |
| Time from stroke centre contact to arrival (all) min | 55 (34–85) [n=196] | 68 (40–85) [n=52] | <0.01 |
| Time from stroke centre contact to arrival (field triaged) min | 54 (33–82) [n=173] | 69 (40–85) [n=49] | <0.01 |
| Time from stroke centre contact to arrival (interhospital transfer) min | 62 (43–103) [n=23] | 57 (52–72) [n=3] | 0.52 |
| Time from stroke centre contact to arrival (>90 km transport distance) min | 71 (57–90) [n=44] | 76 (66–85) [n=22] | <0.01 |
| Time from stroke centre contact to AIR dispatch min | NA | 8 (1–19) | NA |
| Time from symptom onset to stroke centre contact (thrombolysed) min | 53 (15–150) [n=84] | 35 (5–94) [n=22] | 0.11 |
| Time from symptom onset to needle (thrombolysed) min | 165 (104–159) [n=84] | 156 (112–248) [n=22] | 0.37 |
| Door to needle time (thrombolysed) min | 45 (31–95) [n=87] | 46 (35–71) [n=22] | 0.91 |
Data reported as medians and (5–95% range) where relevant.