References Figures

Table 1

Table 1:
Estimates of a Gompertz model without frailty and modified DeMoivre hazard models with Gamma-distributed frailty (Dfemale denotes a dummy variable for females)
 

           

Data Male and Female Mortality in Bulgaria, 1992–93
  Age 40–95
 
Method Gompertz
hazard,
no frailty
Modified DeMoivre hazard function
with Gamma-distributed relative frailty
  Model 0 Model 1 Model 2 Model 3 Model 4

Specification for a = exp(a0 + a1Dfemale)
 
a0 (Constant) -5.5713 -5.6350 -5.5686 -5.4365 -5.5249
  (0.0117)* (0.0110)* (0.0114)* (0.0129)* (0.0116)*
a1 (Female) -1.3205 -0.7302 -0.8385 -1.1086 -0.9163
  (0.0198)* (0.0100)* (0.0117)* (0.0182)* (0.0139)*
 
Specification for b = b0 + b1Dfemale
 
b0 (Constant) 0.0825 0.0755 0.0749 0.0687 0.0740
  (0.0004)* (0.0004)* (0.0004)* (0.0005)* (0.0005)*
b1 (Female) 0.0254 0.0103
  (0.0006)*     (0.0004)*  
 
Specification for s2 = exp(g0 + g1Dfemale)
 
g0 (Constant) -0.6186 -0.4876 -0.7411 0.0960
    (0.0239)* (0.0234)* (0.0263)* (0.0281)*
g1 (Female) -0.4285
      (0.0255)*    
 
Specification for w
 
w set to
122.45
set to
122.45
set to
122.45
104.2420
(0.3475)*

Notes:
Standard errors in parentheses. p-values: + p < 0.01; * p < 0.001. Age has been rescaled in the estimation so that the parameter a reflects the mortality level of the population at age 40, and s2 indicates the variance of unobserved frailty at this age.

 

 

References Figures

Frailty Modelling for Adult and Old Age Mortality: The Application of a Modified DeMoivre Hazard Function to Sex Differentials in Mortality
Hans-Peter Kohler, Iliana Kohler
© 2000 Max-Planck-Gesellschaft ISSN 1435-9871
http://www.demographic-research.org/Volumes/Vol3/8