Labels for Column Variables in Survival Duration by Subgroup Table

Internal function to check variables included in tabulate_survival_subgroups() and create column labels. Note that at least one of n_tot and n_tot_events needs to be provided in vars.

Usage

d_survival_subgroups_colvars(vars, conf_level, method, time_unit = NULL)

Arguments

vars: (character)
the name of statistics to be reported among n_tot_events (total number of events per group), n_events (number of events per group), n_tot (total number of observations per group), n (number of observations per group), median (median survival time), hr (hazard ratio), ci (confidence interval of hazard ratio) and pval (p value of the effect). Note, one of the statistics n_tot and n_tot_events, as well as both hr and ci are required.
conf_level: (proportion)
confidence level of the interval.
method: p-value method for testing hazard ratio = 1.
time_unit: (string)
label with unit of median survival time. Default NULL skips displaying unit.

Value

list of variables to tabulate and their labels.