Table 1.
Baseline characteristics according to the mode of transportation (ambulance vehicle or helicopter) and according to the distance from the scene of event to the PCI-center (Hospital with primary percutaneous coronary intervention facilities)
| Group A (0–25 km.) n = 98 | Group B (26–50 km.) n = 102 | Group C (51–75 km.) n = 101 | Group D (>75 km.) n = 75 | Group E n = 22 | All patients N = 398 | |
|---|---|---|---|---|---|---|
|
Field-triage to PCI-center,% |
89% (87/98) |
93% (95/102) |
83% (84/101) |
75% (56/75) |
73% (16/22) |
85% (338/398) |
|
Distance, scene of event to PCI-center, km † |
8 (5–14) |
39 (33–47) |
61 (53–67) |
114 (87–123) |
104 (79–128)‡ |
50 (26–74) |
|
- Distance among patients field-triaged |
8 (5–13) |
38 (32–47) |
60 (53–67) |
115 (102–127) |
115 (82–127) |
49 (23–69) |
|
- Distance among patients not field-triaged |
12 (7–20) |
41 (39–47) |
67 (56–68) |
92 (86–122) |
90 (62–129) |
67 (42–88) |
|
Health Care System delay, all patients, minutes |
82 (70–104) |
90 (80–104) |
104 (92–122) |
141 (125–166) |
116 (94–137) |
100 (85–134) |
|
- System delay among patients field-triaged |
78 (68–93) |
89 (79–100) |
99 (91–111) |
141 (126–156) |
107 (94–124) |
94 (82–119) |
|
- System delay among patients not field-triaged |
161 (141–200) |
188 (132–248) |
192 (142–220) |
160 (120–199) |
154 (125–165) |
168 (136–216) |
| Door-to-balloon delay, minutes | 34 (24–49) | 28 (22–37) | 26 (23–38) | 31 (23–46) | 37 (24–60) | 29 (23–43) |
†: If transported by ambulance vehicle. ‡: One patient living on an island was not included because distance by ground transportation could not be calculated. Door-to-balloon delay: Delay form arrival at the PCI-center to first coronary intervention. PCI: Percutaneous coronary intervention. Health Care System delay: Delay from Emergency Call to first coronary intervention. Continuous data presented as median (IQR) and categorical data presented as percentage (number/valid cases).