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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 regression

P-value

OR (95% CI)

P-value

OR (95% CI)

P-value

Transport by basic EMT

0.76 (0.37–1.55)

0.447

  

Transport from ED/AMU

0.63 (0.31–1.25)

0.186

  

Female sex

0.41 (0.16–1.02)

0.055

  

Age (for a year)

1.04 (1.01–1.07)

0.018

1.03 (1.01–1.06)

0.012

SBP ≥180 mmHg

0.89 (0.10–7.51)

0.911

  

SBP < 90 mmHg

3.58 (0.74–17.34)

0.113

  

SBP 140–179 mmHg

0.40 (0.18–0.91)

0.028

0.40 (0.20–0.83)

0.014

HR < 55/min

2.28 (0.43–11.93)

0.330

  

HR > 90/min

1.51 (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 therapy

0.20 (0.08–0.51)

0.001

0.20 (0.10–0.39)

< 0.001

Administration of catecholamines

2.31 (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