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. Author manuscript; available in PMC: 2011 Mar 15.
Published in final edited form as: Stat Med. 2009 Jul 20;28(16):2077–2094. doi: 10.1002/sim.3598

Table V.

Treatment group comparisons of estimates of the cumulative incidence function under competing risks and survival probabilities for all disease-free events based on two Weibull distributions. The p-values are calculated using the Wald test.

Years Treatment
group
Cumulative incidence function Survival function
Local or regional Other events All events

ci
se^(Fci)
p-value ci
se^(Fci)
p-value surv
se^(Fsurv)
p-value
Four-parameter Weibull

2 tamoxifen 0.018 0.004 0.0001 0.046 0.006 0.059 0.936 0.008 0.0003
CMFT 0.001 0.001 0.030 0.005 0.969 0.005

5 tamoxifen 0.045 0.007 < 0.0001 0.119 0.011 0.060 0.837 0.012 < 0.0001
CMFT 0.006 0.003 0.091 0.010 0.903 0.010

10 tamoxifen 0.070 0.010 < 0.0001 0.206 0.017 0.736 0.724 0.016 0.006
CMFT 0.019 0.006 0.196 0.025 0.785 0.015

Three-parameter restricted beta-Weibull

2 tamoxifen 0.018 0.004 < 0.0001 0.043 0.006 0.093 0.941 0.007 0.002
CMFT 0.001 0.001 0.029 0.005 0.969 0.005

5 tamoxifen 0.045 0.006 < 0.0001 0.123 0.010 0.027 0.838 0.011 < 0.0001
CMFT 0.006 0.002 0.091 0.010 0.903 0.010

10 tamoxifen 0.070 0.008 < 0.0001 0.208 0.015 0.562 0.716 0.016 0.002
CMFT 0.019 0.005 0.196 0.015 0.785 0.016