Timings: symptom onset to randomisation (OTR) (min). Data are N (%), median (25–75 centile); comparison by Kruskal-Wallis test
| Min | E&W | EEAS | EMAS | LAS | SCAS | SWAS | WAS | WMAS | YAS | p |
| OTR | ||||||||||
| N (%) | 1149 | 178 (15.5) | 218 (19.0) | 202 (17.6) | 7 (0.6) | 265 (23.1) | 89 (7.7) | 37 (3.2) | 153 (13.3) | |
| Median (25–75 centile) | 71 (45–116) | 73 (47–120) | 59 (35–100) | 77 (51–124) | 53 (45–65) | 75 (49–107) | 75 (48–123) | 60 (32–115) | 70 (45–118) | 0.001 |
| N (%) | <0.001 | |||||||||
| ≤30 | 104 (9.1) | 15 (8.4) | 38 (17.4) | 11 (5.4) | 1 (14.3) | 16 (6.0) | 7 (7.9) | 6 (16.2) | 10 (6.5) | |
| 31–60 | 387 (33.8) | 63 (35.4) | 82 (37.6) | 61 (30.2) | 3 (42.9) | 82 (30.9) | 28 (31.5) | 13 (35.1) | 56 (36.6) | |
| 61–90 | 258 (22.5) | 32 (18.0) | 34 (15.6) | 51 (25.2) | 0 (0.0) | 77 (29.1) | 19 (21.3) | 5 (13.5) | 38 (24.8) | |
| 91–120 | 136 (15.1) | 25 (14.0) | 19 (8.7) | 25 (12.4) | 0 (0.0) | 36 (13.6) | 13 (14.6) | 5 (13.5) | 13 (8.5) | |
| 121–180 | 173 (15.1) | 30 (16.9) | 33 (15.1) | 28 (13.9) | 0 (0.0) | 40 (15.1) | 16 (18.0) | 6 (16.2) | 20 (13.1) | |
| 181–240 | 76 (6.6) | 12 (6.7) | 9 (4.1) | 20 (9.9) | 0 (0.0) | 13 (4.9) | 5 (5.6) | 2 (5.4) | 15 (9.8) | |
| >240 | 15 (1.2) | 1 (0.5) | 3 (1.4) | 6 (3.0) | 1 (14.3) | 1 (0.4) | 1 (1.1) | 0 (0.0) | 2 (0.7) |
EEAS, East of England Ambulance Service NHS Trust; EMAS, East Midlands Ambulance Service NHS Trust; E&W, England and Wales; LAS, London Ambulance Service; SCAS, South-Central Ambulance Service NHS Foundation Trust; SWAS, South-West Ambulance Service NHS Foundation Trust; WAS, Welsh Ambulance Service NHS Trust; WMAS, West-Midlands Ambulance Services; YAS, Yorkshire Ambulance Service NHS Trust.