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Table 2 Results for random-effects, random parameter and unbalanced panel mixed ordered probit model

From: Exploring injury severity of pedestrian-vehicle crashes at intersections: unbalanced panel mixed ordered probit model

Variable Random-effects ordered probit Random parameter ordered probit Panel mixed ordered probit
Coef SE z Coef SE z Coef SE z
Day  − 0.198* 0.078  − 2.55  − 0.214* 0.077  − 2.77  − 0.203* 0.078  − 2.62
Pedestrian age          
 > 65 years old 0.367* 0.065 5.58 0.375* 0.065 5.75 0.364* 0.066 5.54
Pedestrian gender      − 0.152* 0.061  − 2.50  − 0.149* 0.061  − 2.43
Speed limit          
 > 50 km/h 0.517* 0.151 3.40 0.524* 0.151 3.46 0.551* 0.153 3.61
Vehicle type 0.124* 0.032 3.79 0.111* 0.032 3.45 0.127* 0.033 3.87
NoPT 0.406* 0.062 6.53 0.406* 0.061 6.59 0.405* 0.062 6.51
NoPS  − 1.498* 0.059  − 25.37  − 1.498* 0.058  − 25.54  − 1.506* 0.059  − 25.43
\({\upsigma }_{\upvarepsilon }^{2}\) 0.011 0.008   0.011 0.008   0.010 0.008  
Goodness-of-fit          
No. of observations 1995    1995    1995   
Quasi/Log likelihood at zero  − 1591.702     − 1591.702     − 1591.702   
Quasi/Log Likelihood at convergence  − 1171.427     − 1172.653     − 1168.453   
AIC 2362.854    2365.307    2358.907   
BIC 2418.838    2421.291    2402.489   
  1. Coef, coefficient; SE, standard error
  2. *Significance at 95% confidence interval