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ARD Survival Differences

Source: R/ard_survival_survfit_diff.R
ard_survival_survfit_diff.Rd

Calculate differences in the Kaplan-Meier estimator of survival using the results from survival::survfit().

Usage 

ard_survival_survfit_diff(x, times, conf.level = 0.95)

Arguments

x

(survift)
object of class 'survfit' typically created with survival::survfit()

times

(numeric)
a vector of times for which to return survival probabilities.

conf.level

(scalar numeric)
confidence level for confidence interval. Default is 0.95.

Value

an ARD data frame of class 'card'

Examples 

library(ggsurvfit)
library(survival)

survfit(Surv_CNSR() ~ TRTA, data = cards::ADTTE) |>
  ard_survival_survfit_diff(times = c(25, 50))
#> # An ARD data frame: 32 × 11
#>    group1 group1_level         variable variable_level stat_name      
#>    <chr>  <list>               <chr>            <list> <chr>          
#>  1 TRTA   Xanomeline High Dose time                 25 reference_level
#>  2 TRTA   Xanomeline High Dose time                 25 method         
#>  3 TRTA   Xanomeline High Dose time                 25 estimate       
#>  4 TRTA   Xanomeline High Dose time                 25 std.error      
#>  5 TRTA   Xanomeline High Dose time                 25 statistic      
#>  6 TRTA   Xanomeline High Dose time                 25 conf.low       
#>  7 TRTA   Xanomeline High Dose time                 25 conf.high      
#>  8 TRTA   Xanomeline High Dose time                 25 p.value        
#>  9 TRTA   Xanomeline High Dose time                 50 reference_level
#> 10 TRTA   Xanomeline High Dose time                 50 method         
#> # ℹ 22 more rows
#> # ℹ 6 more variables: context <chr>, stat_label <chr>, stat <list>,
#> #   fmt_fun <list>, warning <list>, error <list>