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Table 7 Hierarchical multiple regression model showing fatalities from road traffic accidents

From: Injury characteristics and outcome of road traffic accident among victims at Adult Emergency Department of Tikur Anbessa specialized hospital, Addis Ababa, Ethiopia: a prospective hospital based study

Variables entered into the model R R2 R2 change B SE ß t P
Step 1 0.62 0.38**       
Age     0.14 0.05 0.16 2.83 0.005*
Glasgow coma scale     −0.17 0.02 −0.44 −7.53 0.000**
SBP at admission     −0.25 0.04 −0.34 −6.57 0.000**
Severity of trauma     0.01 0.03 0.01 0.22 0.829
Step 2 0.62 0.386** 0.006      
Vehicle type     0.001 0.17 0.002 0.04 0.968
Crash type     0.03 0.02 0.09 1.47 0.144
Road user type     −0.02 0.03 −0.06 −0.89 0.377
  1. Statistical significance: *p < 0.05; **p < 0.001
  2. R2 amount of variance explained by independent variables,R2change Additional variance in dependent variable, B Unstandardized coefficient, ß Standardized coefficient, SE Standard Error, t estimated coefficient (B) divided by its own SE