Aliases: summary.survfit
Keywords: survival
### ** Examples summary( survfit( Surv(futime, fustat)~1, data=ovarian))
Call: survfit(formula = Surv(futime, fustat) ~ 1, data = ovarian) time n.risk n.event survival std.err lower 95% CI upper 95% CI 59 26 1 0.962 0.0377 0.890 1.000 115 25 1 0.923 0.0523 0.826 1.000 156 24 1 0.885 0.0627 0.770 1.000 268 23 1 0.846 0.0708 0.718 0.997 329 22 1 0.808 0.0773 0.670 0.974 353 21 1 0.769 0.0826 0.623 0.949 365 20 1 0.731 0.0870 0.579 0.923 431 17 1 0.688 0.0919 0.529 0.894 464 15 1 0.642 0.0965 0.478 0.862 475 14 1 0.596 0.0999 0.429 0.828 563 12 1 0.546 0.1032 0.377 0.791 638 11 1 0.497 0.1051 0.328 0.752
summary( survfit( Surv(futime, fustat)~rx, data=ovarian))
Call: survfit(formula = Surv(futime, fustat) ~ rx, data = ovarian)
rx=1
time n.risk n.event survival std.err lower 95% CI upper 95% CI
59 13 1 0.923 0.0739 0.789 1.000
115 12 1 0.846 0.1001 0.671 1.000
156 11 1 0.769 0.1169 0.571 1.000
268 10 1 0.692 0.1280 0.482 0.995
329 9 1 0.615 0.1349 0.400 0.946
431 8 1 0.538 0.1383 0.326 0.891
638 5 1 0.431 0.1467 0.221 0.840
rx=2
time n.risk n.event survival std.err lower 95% CI upper 95% CI
353 13 1 0.923 0.0739 0.789 1.000
365 12 1 0.846 0.1001 0.671 1.000
464 9 1 0.752 0.1256 0.542 1.000
475 8 1 0.658 0.1407 0.433 1.000
563 7 1 0.564 0.1488 0.336 0.946