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Table 2 Regression coefficients from logistic regression model

From: Reappraising the concept of massive transfusion in trauma

 

Log-odds ratio (SEM)

Odds ratio (95% CI)

age

0.16 (0.05)

1.2 (1.1 to 1.3)

Ln (time to emergency department)

0.06 (0.17)

1.1 (0.8 to 1.5)

Penetrating injury

0.4 (0.24)

1.5 (0.9 to 2.4)

Systolic blood pressure

-0.02 (0.003)

0.98 (0.97 to 0.98)

ln(25a + base deficit)

5.48 (0.5)

240 (91 to 639)

1/(ln(prothrombin time2))

-26.7 (4.3)

2.5 × 10-12 (5.3 × 10-16 to 1.2 × 10-8)

Intercept

-16.7 (2.3)

-

  1. a25 is an arbitrary constant added to base deficit to ensure positive values before logarithmic transformation.