Skip to main content

Table 4 Univariate and multivariate Cox proportional-hazards models for a composite of both periods and within each period (2001-3, 2005-7).

From: Blood product ratio in acute traumatic coagulopathy - effect on mortality in a Scandinavian level 1 trauma centre

  

Univariate

Multivariate

  

HR (95% CI)1

P-value

HR (95% CI)1

P-value

Study period 2001-3 and 2005-7 (n = 220) 7

ISS

score2

1.03 (1.01-1.06)

0.001

1.03 (1.01-1.06)

0.007

Age

years3

1.04 (1.02-1.05)

< 0.001

1.04 (1.03-1.06)

< 0.001

RBC 0-6 h

n4

1.03 (1.01-1.05)

0.013

1.01 (0.96-1.05)

0.756

FFP 0-6 h

n4

1.02 (1.00-1.05)

0.055

0.94 (0.84-1.06)

0.329

PLT 0-6 h

n4

1.06 (1.01-1.11)

0.014

1.12 (0.92-1.36)

0.246

Platelet count

10*109/l5

0.96 (0.93-0.99)

0.007

0.99 (0.96-1.02)

0.353

APTT

> 35 s6

4.60 (2.69-7.88)

< 0.001

3.09 (1.61-5.93)

< 0.001

Study period 2001-3 (n = 79) 7

ISS

score2

1.01 (0.97-1.05)

0.646

1.02 (0.98-1.07)

0.350

Age

years3

1.05 (1.02-1.07)

< 0.001

1.05 (1.03-1.08)

< 0.001

RBC 0-6 h

n4

1.01 (0.95-1.07)

0.817

0.97 (0.88-1.07)

0.520

FFP 0-6 h

n4

0.94 (0.80-1.11)

0.474

0.70 (0.49-0.99)

0.045

PLT 0-6 h

n4

1.20 (0.63-2.26)

0.582

5.30 (0.79-35.32)

0.085

Platelet count

10*109/l5

0.97 (0.92-1.03)

0.371

0.97 (0.91-1.02)

0.247

APTT

> 35 s6

3.42 (1.28-9.15)

0.014

2.47 (0.66-9.21)

0.177

Study period 2005-7 (n = 141) 7

ISS

score2

1.04 (1.02-1.07)

0.001

1.04 (1.01-1.07)

0.020

Age

years3

1.03 (1.01-1.05)

< 0.001

1.04 (1.02-1.06)

< 0.001

RBC 0-6 h

n4

1.03 (1.01-1.05)

0.016

1.04 (0.97-1.12)

0.223

FFP 0-6 h

n4

1.02 (1.00-1.05)

0.085

0.98 (0.87-1.11)

0.749

PLT 0-6 h

n4

1.05 (1.00-1.10)

0.061

0.95 (0.76-1.19)

0.676

Platelet count

10*109/l5

0.95 (0.92-0.99)

0.011

0.98 (0.95-1.02)

0.320

APTT

> 35 s6

5.04 (2.62-9.68)

< 0.001

3.41 (1.55-7.51)

0.002

  1. 1Relative hazards with 95% confidence intervals (HR (95% CI)) and p-values are shown for all variables, with p-values in bold for variables with p < 0.05. 2One unit increase in ISS, 3One years older, 4One more unit of the respective blood component, 5A 10*109/l increase in platelet count, 6APTT > 0.35 s (above reference range). 7Each univariate and multivariate Cox models only included patients with complete data (i.e., the same patients were included in each univariate and multivariate analyses)
Back to article page

Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine

ISSN: 1757-7241