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. 2014 Apr 8;77(1):131–148. doi: 10.1111/rssb.12060

Table 7.

Interpretation of probit parameters

Survival parameter Default Test Probability
value value of death
Time effects
Year 1 0.003
Year 2 0.003
Year 3 0.004
Year 4 0.004
Year 5 0.005
Year 6 0.006
Year 7 0.006
Year 8 0.007
Year 9 0.009
Year 10 0.010
Covariate effects
Age at t0 (years) 18.9 23.9 0.004
Sex Female Male 0.001
Stationary Gaussian process U 0 −10 0.008
Random intercept U1 0 −10 0.007
Random slope U2 0 −2 0.025

Default values are the mean or baseline value of each parameter. For the effect of time, the probabilities of death in each time interval are given, at default values of other parameters. For other covariate effects the probability of death in the first year is given, when the parameter indicated is changed to the test value, and all other parameters take their default values.