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Table 2 Relationship of Independent variables associated with outcome ‘Status at discharge’ (Alive/Deceased), obtained using bi-variate analysis

From: Identifying pre-hospital factors associated with outcome for major trauma patients in a regional trauma network: an exploratory study

Independent Variable

Test Statistic

df.

p

Mean Difference

95% CI(Lower)

95% CI(Upper)

GCS

t = −10.222

44.15

p ≤ 0.000

7.28 scale points

5.845

8.715

Respiratory Rate

t = −5.241

43.55

p ≤ 0.000

8 per min.

5

12

Systolic BP at Scene

t = −3.027

37.52

p ≤ 0.004

11.4 mmHg

11.46

57.7

Age

t = −5.464

738

p ≤ 0.000

17.8 years

11.47

24.24

Transport Time

t = −2.085

685

p ≤ 0.037

−3.78 min

−7.14

- 0.21

Skill Mix

u = 18,239

-

p ≤ 0.036

-

-

-

Triage

u = 19,959

 

p < 0.000

-

-

-