Statistical Analysis of Dependent Current Status Data with Application to Tumorigenicity Experiments - Interval-Censored-Time-to-Event Data: Methods and Applications - page 123

TABLE 5.1: Parameter Estimates along with Their Standard Errors, 95%

Confidence Limits, and p-Values Based on a Normal Frailty

Gamma frailty model:

95%CI

Estimate SE (L , U) Z P

hazard.tumor (0,12] 0.009 0.001 0.007 0.012 6.935 0.000

hazard.tumor (12,18] 0.005 0.001 0.002 0.007 3.454 0.001

hazard.tumor (18,33] 0.053 0.010 0.034 0.072 5.430 0.000

hazard.death (0,12] 0.002 0.001 0.001 0.003 4.047 0.000

hazard.death (12,18] 0.007 0.002 0.004 0.011 4.659 0.000

hazard.death (18,33] 0.083 0.011 0.062 0.105 7.581 0.000

beta1 0.202 0.185 -0.160 0.563 1.092 0.275

beta2 0.157 0.210 -0.254 0.568 0.748 0.454

beta3 0.991 0.264 0.475 1.508 3.760 0.000

theta 0.163 0.009 0.146 0.180 18.815 0.000

Full log-likelihood = 470:028 n = 671