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Table 2 Generalized additive models (GAM) for the Poisson family with a log link

From: Incidence of fractures among children and adolescents in rural and urban communities - analysis based on 9,965 fracture events

Anova Residual deviance Change in deviance P-value
1) Null model 4569.7   -
2) Year 4541.7 27.98 <0.0001
3) Year + Age 3194.0 1347.74 <0.0001
4) Year + Age + Sex 2767.4 426.60 <0.0001
5) Year + Age + Sex + Area 2709.4 57.99 <0.0001
  1. The models are evaluated with the response variable being the incidence of fractures. In the model the time trend is fitted with a smooth term and linear coefficients are estimated for the variables sex, age and region.