Item | All (n = 669) | AMP + NCTI (n = 72) | AMP (n = 104) | Non-AMP/NCTI (n = 493) | P value |
---|---|---|---|---|---|
Male | 99, 98–100 (661/665) | 100, 95–100 (72/72) | 100, 96–100 (103/103) | 99, 98–100 (486/490) | 0.2935 |
Age (year) | 24 [22–28] | 23 [21–27] | 24 [21–27] | 24 [22–28] | 0.1128 |
Injury to MTF (min) | 41 [31–56] | 34 [28–45] | 34 [27–46] | 44 [33–59] | < 0.0001 |
9-Line to MTF (min) | 36 [29–47] | 32 [25–40] | 32 [27–44] | 38 [30–51] | < 0.0001 |
Injury description* | |||||
Blast | 72, 69–76 (484/669) | 100, 95–100 (72/72) | 95, 89–98 (99/104) | 63, 59–68 (313/493) | < 0.0001 |
Penetrating | 26, 23–30 (177/669) | 0, 0–5 (0/72) | 4, 2–9 (4/104) | 35, 31–39 (173/493) | < 0.0001 |
Blunt | 1, 0.6–2 (8/669) | 0, 0–5 (0/72) | 1, 0.2–5 (1/103) | 1, 0.6–3 (7/493) | 0.7749 |
ISS (score) | 17 [12–27] | 33 [25–40] | 18 [14–27] | 17 [12–24] | < 0.0001 |
GCS of 3 | 3, 2–5 (17/552) | 2, 0.2–8 (1/65) | 3, 1–9 (3/89) | 3, 1–6 (13/398) | 0.7042 |
Head injury (AIS of head ≥2) | 65, 56–74 (240/369) | 74, 60–85 (32/43) | 62, 50–73 (38/61) | 64, 52–75 (170/265) | 0.1169 |
Prehospital hypotension (SBP < 90 mmHg) | 25, 21–29 (117/472) | 47, 35–60 (26/55) | 27, 18–37 (22/82) | 21, 17–25 (69/335) | 0.0015 |
30-day mortality | 5, 3–7 (31/662) | 8, 4–17 (6/72) | 4, 2–10 (4/103) | 4, 3–7 (21/487) | 0.3045 |