Article Figures & Data
Figures
- Figure 1
Flow diagram illustrating breakdown of exclusion and inclusion criteria. ED, emergency department; HP, hypotensive; NP, normotensive.
Tables
- Table 1
Patient demographics
Hypotensive patients (n=81) Normotensive patients (n=206) p Value Sex Female: 33
Male: 48Female: 82
Male: 1240.77 Age 38.8±2.7 51.1±1.6 <0.0001 Method of transport Ambulance: 62
Helicopter: 19
Police: 0Ambulance: 184
Helicopter: 20
Police: 20.0078 Injury mechanism Blunt: 73
Burn: 1
Penetrating: 7Blunt: 190
Burn: 2
Penetrating: 140.7593 Injury location Head: 27
Head, thorax: 2
Head, appendage: 10
Thorax: 4
Back: 4
Other: 34Head: 65
Head, thorax: 11
Head, appendage: 19
Thorax: 10
Back: 11
Other: 900.8649 Data are presented as mean±SE.
- Table 2
Injury severity data
Hypotensive patients Normotensive patients p Value Average prehospital SBP 99.11±1.75 mm Hg 143.44±1.59 mm Hg <0.0001 Average ED SBP 132.65±1.39 mm Hg 148.47±1.69 mm Hg <0.0001 Average prehospital GCS 12.81±0.44 14.38±0.13 <0.0001 Average ED GCS 12.78±0.47 14.37±0.14 <0.0001 ISS 12.27±1.12 9.22±0.49 <0.0001 Data are presented as mean±SE.
ED, emergency department; GCS, Glasgow Coma Score; SBP, systolic blood pressure.
- Table 3
Outcomes data, hypotension defined as SBP ≤110 mm Hg
Hypotensive patients Normotensive patients p Value ICU admissions 56.79% 22.82% <0.0001 ICU LOS (days) 3.23±0.71 0.71±0.17 <0.0001 Hospital LOS 8.58±1.39 4.86±0.33 0.0105 Ventilator days 3.38±1.20 0.27±0.08 0.0001 Repeat hypotensive episodes 81.48% 38.35% <0.0001 PRBC in first 24 hours 22%±8% 6%±2% 0.0114 Data are presented as mean±SE or percent (patients).
ICU, intensive care unit; LOS, length of stay; PRBC, packed red blood cells; SBP, systolic blood pressure.
- Table 4
Outcomes data, hypotension defined as SBP ≤90 mm Hg
Hypotensive patients (n=20) Normotensive patients (n=272) p Value ICU admissions 70% 30.51% 0.0008 ICU LOS (days) 1 0 0.0002 Hospital LOS 6.5 4 0.0011 Ventilator days 0 0 0.0024* Repeat hypotensive episodes 85% 48.53% 0.0019 PRBC in first 24 hours 20% 3.69% 0.0105 Data are presented as median or percent (patients).
*HP were found to have significantly higher ventilator days compared to NP based on the Mann-Whitney-Wilcoxon test despite equivalent medians. Detailed explanation is provided in the Methods section.
ICU, intensive care unit; LOS, length of stay; PRBC, packed red blood cells; SBP, systolic blood pressure.
