This (generic) function prints the LaTeX code of the results of a fit from
coxreg, phreg, tpchreg,
or aftreg, similar
to what xtable does for fits from other functions.
data(oldmort)
fit <- coxreg(Surv(enter, exit, event) ~ civ + sex, data = oldmort)
dr <- drop1(fit, test = "Chisq")
ltx(fit, dr = dr, caption = "A test example.", label = "tab:test1")