Table 6

Logistic regression analysis for near miss accidents in the last 3 years

Variable B Wald test p value Odds ratio Lower 95% CI Upper 95% CI
Epworth score0.1414.88<0.00011.151.071.23
Tracking error0.332.56>0.051.400.932.12
Reaction time0.110.74>
Off-road events/h0.0030.56>0.051.0030.991.01
  • RDI = respiratory disturbance index.

  • 6-150 OR for every 1 unit increase in variable (i.e. estimated risk of near miss accident increases by 1.15 for every increase in Epworth score by 1).