[R] Extract p value from coxme object

[Terry Therneau]

 You can look at the code
	coxme:::print.coxme

There you will see that the global test is a chisquare
	   chi1 <- 2*diff(x$loglik[1:2]) 
with x$df[1] degrees of freedom.

 The fixed effects coefficients are found in x$coefficients$fixed, and
the variances are diag(x$var)[-(1:nfrail)].  (The variances for the
random coefficients are first, and then those for the fixed effects).
If there are 5 fixed coefficients, their variance/covariance matrix is
the lower right 5x5 corner of x$var.

Terry Therneau