A dataset containing parametric competing-risk survival estimates used for
examples in the package vignettes. It was originally produced by a Weibull
parametric survival model fitted to an aortic-valve surgery cohort and
exported from SAS via tp.hp.dead.sas.
Format
A data frame with 2001 rows (fine time grid) and 41 columns:
- years
Follow-up time in years.
- months
Follow-up time in months (
years* 12).- time
Follow-up time in years (same as
years; retained for SAS compatibility).- lag_time
Lagged follow-up time (equals
timefor standard output).- dt
Time increment between consecutive time points.
- sedeath
Parametric survival estimate: freedom from death (percent).
- sldeath
Lower 95 % confidence limit for
sedeath.- sudeath
Upper 95 % confidence limit for
sedeath.- hedeath
Instantaneous hazard rate estimate for death.
- hldeath
Lower 95 % confidence limit for
hedeath.- hudeath
Upper 95 % confidence limit for
hedeath.- vedeath
Variance of the death survival estimate.
- nodeath
Cumulative probability of death by time t (percent).
- cldeath
Lower 95 % confidence limit for
nodeath.- cudeath
Upper 95 % confidence limit for
nodeath.- no1death
Identical to
nodeathin this extract.- tx1death
Cumulative hazard integral for death (Weibull model internal).
- txdeath
Cumulative hazard for death (same scale as
tx1death).- sestrk
Parametric survival estimate: freedom from stroke (percent).
- slstrk
Lower 95 % confidence limit for
sestrk.- sustrk
Upper 95 % confidence limit for
sestrk.- hestrk
Instantaneous hazard rate estimate for stroke.
- hlstrk
Lower 95 % confidence limit for
hestrk.- hustrk
Upper 95 % confidence limit for
hestrk.- vestrk
Variance of the stroke survival estimate.
- nostrk
Cumulative probability of stroke by time t (percent).
- clstrk
Lower 95 % confidence limit for
nostrk.- custrk
Upper 95 % confidence limit for
nostrk.- no1strk
Identical to
nostrkin this extract.- tx1strk
Cumulative hazard integral for stroke (Weibull model internal).
- txstrk
Cumulative hazard for stroke (same scale as
tx1strk).- cestrk
Percent free of stroke,
100 - nostrk.- noinit
Percent event-free (still in the initial state).
- clinit
Lower 95 % confidence limit for
noinit.- cuinit
Upper 95 % confidence limit for
noinit.- no1init
Identical to
noinitin this extract.- z
Log-hazard estimate for the pooled Weibull model.
- sez
Standard error of
z.- cllz
Lower 95 % confidence limit for
z(log-hazard scale).- cluz
Upper 95 % confidence limit for
z(log-hazard scale).- check
Row sum of
noinit,nodeathandnostrk; about 100.
Details
The three states tracked are competing risks; at every time point the
percentages in the three states sum to 100 (see check):
- init
Event-free (still in the initial state)
- death
Death
- strk
Stroke
Each outcome suffix maps to: se* = survival estimate; sl*/su* = lower /
upper 95 % CI on the survival estimate; he* = hazard rate estimate;
hl*/hu* = lower / upper 95 % CI on the hazard; ve* = variance of the
survival estimate; no* = cumulative incidence (percent); cl*/cu* = lower
/ upper 95 % CI on the cumulative incidence; no1* = identical to no* in
this extract; tx*/tx1* = cumulative hazard
integral (Weibull model output, used internally).