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Table 2 Univariable and multivariable logistic regression analyses of mortality

From: The elderly age criterion for increased in-hospital mortality in trauma patients: a retrospective cohort study

Variable Univariable Multivariable 1 Multivariable 2
OR (95% CI) p-value OR (95% CI) p-value OR (95% CI) p-value
Age (years) 1.042 (1.040–1.043) < 0.001 1.050 (1.047–1.053) < 0.001 1.050 (1.047–1.053) < 0.001
Female 0.616 (0.584–0.650) < 0.001 0.787 (0.712–0.869) < 0.001 0.791 (0.717–0.873) < 0.001
Trauma mechanism       
Motor vehicle collision Reference
Fall 0.637 (0.603–0.674) < 0.001 1.076 (0.962–1.202) 0.199 1.078 (0.965–1.204) 0.185
Blunt injury 0.103 (0.091–0.117) < 0.001 0.457 (0.371–0.563) < 0.001 0.462 (0.375–0.568) < 0.001
Penetrating injury 0.154 (0.130–0.183) < 0.001 0.678 (0.504–0.913) 0.499 0.676 (0.502–0.909) 0.010
Othera 0.294 (0.273–0.317) < 0.001 0.631 (0.548–0.727) < 0.001 0.629 (0.546–0.725) < 0.001
Vital signs       
SBP (mmHg) 0.970 (0.969–0.970) < 0.001 0.989 (0.987–0.990) < 0.001 0.988 (0.987–0.990) < 0.001
DBP (mmHg) 0.971 (0.970–0.972) < 0.001 1.002 (1.001–1.003) < 0.001 1.002 (1.001–1.003) < 0.001
HR (beats/min) 0.989 (0.988–0.991) < 0.001 1.003 (1.002–1.004) < 0.001 1.003 (1.002–1.004) < 0.001
RR (breath/min) 1.005 (1.005–1.005) < 0.001 1.007 (1.005–1.008) < 0.001 1.007 (1.006–1.008) < 0.001
BT (℃) 1.003 (1.002–1.003) < 0.001 1.000 (0.999–1.001) 0.737   
GCS 0.565 (0.561–0.570) < 0.001 0.637 (0.630–0.644) < 0.001 0.637 (0.630–0.644) < 0.001
EMR-ISS 1.073 (1.072–1.074) < 0.001 1.032 (1.030–1.035) < 0.001 1.032 (1.030–1.035) < 0.001
  1. aOther contains the low-frequency injury mechanisms, such as explosions or foreign bodies
  2. BT, body temperature; CI, confidence interval; DBP, diastolic blood pressure; EMR-ISS, excess mortality ratio–adjusted Injury Severity Score; GCS, Glasgow Coma Scale; HR, heart rate; OR, odds ratio; RR, respiratory rate; SBP, systolic blood pressure