Table 2 Comparison of the sub-groups according to delay times from the emergency call to patient treatment by the helicopter emergency medical services (HEMS)
0 − 19 min n = 1,402 | 20 − 39 min n = 1,478 | ≥ 40 min n = 617 | P value | ||||
|---|---|---|---|---|---|---|---|
Age (years) | 50.0 (31.2 − 64.5) | 50.3 (32.6 − 66.1) | 49.1 (30.5 − 64.7) | 0.194 | |||
Sex (male) | 1,005 (71.7) | 1,072 (72.7) | 459 (74.4) | 0.454 | |||
Heart rate (beats per minute) | 90 (79 − 105) | 90 (78 − 102) | 88 (74 − 102) | 0.002 | |||
Systolic blood pressure (mmHg) | 134 (118 − 154) | 130 (112 − 150) | 130 (110 − 150) | 0.002 | |||
GCS | 14 (7 − 15) | 14 (7 − 15) | 12 (5 − 15) | < 0.001 | |||
Advanced airway management | 354 (25.2) | 456 (31.0) | 266 (43.6) | < 0.001 | |||
SIA/G | 2.6 (1.8 − 4.4) | 2.7 (1.8 − 4.6) | 2.8 (1.8 − 5.2) | 0.072 | |||
Death within 30 days | 173 (12.3) | 213 (14.5) | 102 (16.6) | 0.033 | |||
ICISS | 0.91 (0.80 − 0.98) | 0.91 (0.80 − 0.97) | 0.85 (0.74 − 0.96) | < 0.001 | |||