Displaying 2 results from an estimated 2 matches for "kfitm1".
2007 Apr 17
3
Extracting approximate Wald test (Chisq) from coxph(..frailty)
Dear List,
How do I extract the approximate Wald test for the
frailty (in the following example 17.89 value)?
What about the P-values, other Chisq, DF, se(coef) and
se2? How can they be extracted?
######################################################>
kfitm1
Call:
coxph(formula = Surv(time, status) ~ age + sex +
disease + frailty(id,
dist = "gauss"), data = kidney)
coef se(coef)
age 0.00489 0.0150
sex -1.69703 0.4609
diseaseGN 0.17980 0.5447...
2006 Aug 02
0
expected survival from a frailty cox model using survfit
...users
Would somebody know how to estimate survival from a frailty cox model,
using the function survfit
and the argument newdata ? (or from any other way that could provide
individual expected survival
with standard error); Is the problem related to how the random term is
included in newdata ?
kfitm1 <- coxph(Surv(time,status) ~ age + sex + disease + frailty(id,
dist='gauss'), kidney)
survfit(kfitm1) #ok for mean expected survival
Call: survfit.coxph(object = kfitm1)
n events median 0.95LCL 0.95UCL
76 58 63 39 132
survfit(kfitm1, newdata=kidney[1,]...