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Table 3 Logistic regression and backward stepwise regression analyses: dependent variable death within 30 days since the day of medical transport to the cardiac catheterization lab

From: Complication during transportation and 30 days mortality of patients with acute coronary syndrome

 Regression analysies Backward stepwise regressionP-value
OR (95% CI)P-valueOR (95% CI)P-value
Transport by basic EMT0.76 (0.37–1.55)0.447  
Transport from ED/AMU0.63 (0.31–1.25)0.186  
Female sex0.41 (0.16–1.02)0.055  
Age (for a year)1.04 (1.01–1.07)0.0181.03 (1.01–1.06)0.012
SBP ≥180 mmHg0.89 (0.10–7.51)0.911  
SBP < 90 mmHg3.58 (0.74–17.34)0.113  
SBP 140–179 mmHg0.40 (0.18–0.91)0.0280.40 (0.20–0.83)0.014
HR < 55/min2.28 (0.43–11.93)0.330  
HR > 90/min1.51 (0.74–3.11)0.259  
SatO2 < 90%0.63 (0.17–2.40)0.502  
SatO2 ≥ 92% without oxygen therapy or ≥ 95% with oxygen therapy0.20 (0.08–0.51)0.0010.20 (0.10–0.39)< 0.001
Administration of catecholamines2.31 (0.32–16.53)0.403  
  1. Abbreviations: EMT Emergency medical team, ED Mergency department, AMU Acute medical unit, SBP Systolic blood pressure, DBP Diastolic blood pressure, HR Heart rate, SatO2 Saturation, OR Odds ratio