Internal function to check variables included in tabulate_survival_subgroups() and create column labels.
d_survival_subgroups_colvars(vars, conf_level, method, time_unit = NULL)A list of variables and their labels to tabulate.
(character)
the names 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.
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.
(proportion)
confidence level of the interval.
(string)
p-value method for testing hazard ratio = 1.
(string)
label with unit of median survival time. Default NULL skips displaying unit.