are very close to those obtained in the previous model. The standard errors of parameter estimates are slightly higher than those obtained for the Poisson model, but this does not impact the statistical significance of the regression coefficients. The two adjusted models do not provide further details in comparison with the Poisson regression in terms of risk factors that explain the variation of claim frequency, but managing these enhanced models could make a difference in terms of adjusting the Poisson overdispersion in the data.