plot_km: Kaplan-Meier curve with number at risk

In trialfigs: Efficacy and Safety Graphics for Clinical Review Packages

Kaplan-Meier curve with number at risk

Description

Event-free curve with censoring ticks, dashed confidence limits, a log-rank p-value and the number at risk. Competing risks are not modelled.

Usage

plot_km(data, time, event, arm, xlab = "Time (months)",
  ylab = "Event-free probability", title = "Kaplan-Meier estimate",
  subtitle = NULL, conf_int = TRUE, risk_times = NULL, palette = NULL,
  population = "Intent-to-treat population")

Arguments

data	Subject-level data.
time, event, arm	Column names. event is 1 for the event and 0 for censoring.
xlab, ylab, title, subtitle	Labels.
conf_int	Draw pointwise confidence limits.
risk_times	Times for the number at risk. Default is pretty().
palette	Named color vector.
population	Analysis-population note printed in the caption.

Value

A ggplot object.

Examples

onc <- simulate_oncology(n_per_arm = 15)
plot_km(onc$adsl, time = "os_months", event = "os_event", arm = "arm")

trialfigs documentation built on Oct. 15, 2026, 5:09 p.m.