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. Author manuscript; available in PMC: 2021 Apr 30.
Published in final edited form as: South Med J. 2014 Dec;107(12):751–756. doi: 10.14423/SMJ.0000000000000206

Table 3.

Logistic regression of odds of EMS arrival (regression 1) and mortality (regression 2)a

Variable in the equation
AOR 95% CI P
Regression 1: EMS vs walk-in
 Age 1.02 1.0–1.04 0.02
 AMS 2.5 1.5–4.2 <0.01
 Lactates >4 2.2 1.3–3.7 <0.01
Regression 2: dead vs alive
 Age 1.03 1.01–1.04 <0.01
 Lactates >4 1.9 1.3–2.9 <0.01
 SOFA score 1.3 1.2–1.3 <0.01
 SIRS criteria 1.3 1.1–1.7 0.02

AMS, altered mental status; AOR, adjusted odds ratio; CI, confidence interval; EMS, emergency medical services; SIRS, Systemic Inflammatory Response Syndrome; SOFA, Sequential Organ Failure Assessment.

a

Based on predictor variables from Tables 1 and 2, respectively. Variables were entered into the model if bivariate significance was <0.05. Variables that correlated with other variables at r >0.3 were considered collinear, and the least significant variable was removed from the analysis.