Table 1

Patient demographics by initial systolic blood pressure

≥90 mm Hg
(n=749)
80–89 mm Hg
(n=157)
70–79 mm Hg
(n=108)
60–69 mm Hg
(n=64)
0–59 mm Hg
(n=96)
P value
Age (years), median (IQR)29 (21–40)32 (22–48)35 (24–48)31 (22–49)34 (26–50)<0.001
Male sex, n (%)651 (87)121 (77)84 (78)48 (75)78 (81)0.002
Blunt injury, n (%)223 (30)91 (58)57 (53%)40 (62)57 (59)<0.001
GCS, median (IQR)15 (15–15)15 (10–15)14 (7–15)13 (3–15)3 (3–8)<0.001
Base deficit, median (IQR)−4 (−6 to −2)−6 (−9 to −4)−8 (−11 to −5)−8 (−11 to −5)−10 (−15 to −6)<0.001
ED LOS (min), median (IQR)47 (32–65)44 (31–58)37 (28–49)41 (26–56)34 (26–44)<0.001
ISS, median (IQR)16 (9–26)25 (16–34)25 (17–34)32 (19–47)30 (20–41)<0.001
AIS head, median (IQR)0 (0–0)0 (0–2)0 (0–2)0 (0–4)0 (0–2)<0.001
AIS chest, median (IQR)0 (0–3)2 (0–3)2 (0–3)3 (2–4)3 (0–4)<0.001
AIS abdomen, median (IQR)3 (2–4)3 (2–4)3 (2–4)3 (2–4)4 (3–5)<0.001
  • AIS, Abbreviated Injury Scale; ED, emergency department; GCS, Glasgow Coma Scale; ISS, Injury Severity Score; LOS, length of stay.