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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 - - -