Table 2

Patient characteristics by admitting service (trauma, orthopedic surgery, other)

Patient characteristicAdmitting service
AllTraumaOrthopedicOtherP value
n10 182334727504085
Age, mean (SD)82.7 (8.6)82.9 (8.4)81.9 (8.7)82.9 (8.5)<0.001
Age (%)<0.001
 65–74 years21.219.524.420.3
 75–84 years33.834.833.933.0
 ≥85 years45.045.741.746.6
Male (%)31.330.630.332.60.1
Race (%)<0.001
 White91.087.493.292.4
 Black6.810.14.65.5
 Other2.32.52.22.1
Injury Severity Score (%)<0.001
 978.072.682.479.4
 1021.526.217.520.3
 110.61.30.10.3
AIS head/neck=1 (%)0.61.60.040.3<0.001
AIS chest=1 (%)0.30.40.20.20.1
AIS abdomen=1 (%)0.020.030.00.020.7
ED heart rate (%)<0.001
 51–120 bpm92.092.892.291.2
 >120 bpm1.31.30.61.7
 0–50 bpm0.80.90.70.9
 Missing5.95.06.66.2
ED systolic blood pressure (%)0.2
 >90 mm Hg93.293.992.792.9
 61–90 mm Hg0.60.60.40.8
 ≤60 mm Hg0.10.10.10.1
 Missing6.25.46.86.3
Glasgow Coma Scale motor (%)<0.001
 10.10.030.00.1
 2–51.42.00.71.5
 683.082.384.582.6
 Missing15.515.714.815.8
Transfer in (%)10.94.313.614.7<0.001
Intubated (%)0.20.30.10.20.2
Comorbid diseases (%)
 Active chemotherapy1.00.90.71.3<0.1
 Advanced directive limiting care12.69.78.418.0<0.001
 Alcohol use disorder2.32.21.92.60.1
 Angina0.90.50.71.4<0.001
 Bleeding risk24.729.019.224.8<0.001
 Cerebrovascular accident6.36.66.06.20.6
 COPD13.412.210.216.5<0.001
 Chronic renal failure2.22.31.22.7<0.001
 Congestive heart failure10.010.28.211.1<0.001
 Current smoker9.810.79.29.40.1
 Dementia26.729.121.228.5<0.001
 Diabetes mellitus20.220.718.621.0<0.1
 Disseminated cancer1.11.01.11.30.5
 Drug use disorder1.21.70.90.9<0.01
 Functionally dependent health status49.454.138.652.8<0.001
 History of myocardial infarction0.91.10.70.90.3
 Hypertension requiring medication67.770.365.467.1<0.001
 Liver disease1.00.90.61.3<0.1
 Major psychiatric illness22.920.320.326.9<0.001
 Obesity1.31.41.51.00.2
 Peripheral vascular disease3.94.12.44.6<0.001
 Steroid use4.04.23.54.10.3
 Therapeutic anticoagulation18.922.514.419.0<0.001
  • AIS, Abbreviated Injury Scale; bpm, beats per minute; COPD, chronic obstructive pulmonary disease; ED, emergency department; mm Hg, millimeters of mercury.