diff --git a/survival.R b/survival.R
index e5ab0aa..451816f 100644
--- a/survival.R
+++ b/survival.R
@@ -13,13 +13,13 @@ surv_asct <- Surv(time = secmal$event_time_asct, event = secmal$event_status)
 # plot survival after diagnosis
 # scaled to years
 png(filename = "survival_dx.png", width = 3000, height = 3000, res = 300)
-plot(survfit(surv_dx ~ 1), mark.time = TRUE, xscale = 12, xlab = "Years", ylab = "Survival")
+plot(survfit(surv_dx ~ 1), mark.time = TRUE, xscale = 365.25, xlab = "Years", ylab = "Survival")
 title("Kaplan-Meier estimate for\nsecMalASCT study", "Survival after diagnosis")
 dev.off()
 
 # One graph per sex
 png(filename = "survival_dx_sex.png", width = 3000, height = 3000, res = 300)
-plot(survfit(surv_dx ~ sex, data = secmal), mark.time = TRUE, xscale = 12, xlab = "Years", ylab = "Survival", lty = 2:3)
+plot(survfit(surv_dx ~ sex, data = secmal), mark.time = TRUE, xscale = 365.25, xlab = "Years", ylab = "Survival", lty = 2:3)
 title("Kaplan-Meier estimate for\nsecMalASCT study", "Survival after diagnosis")
 legend(100, .9, c("Female", "Male"), lty = 2:3)
 dev.off()
@@ -27,13 +27,13 @@ dev.off()
 # plot survival after diagnosis
 # scaled to years
 png(file = "survival_asct.png", width = 3000, height = 3000, res = 300)
-plot(survfit(surv_asct ~ 1), mark.time = TRUE, xscale = 12, xlab = "Years", ylab = "Survival")
+plot(survfit(surv_asct ~ 1), mark.time = TRUE, xscale = 365.25, xlab = "Years", ylab = "Survival")
 title("Kaplan-Meier estimate for\nsecMalASCT study", "Survival after transplantation")
 dev.off()
 
 # One graph per sex
 png(filename = "survival_asct_sex.png", width = 3000, height = 3000, res = 300)
-plot(survfit(surv_asct ~ sex, data = secmal), mark.time = TRUE, xscale = 12, xlab = "Years", ylab = "Survival", lty = 2:3)
+plot(survfit(surv_asct ~ sex, data = secmal), mark.time = TRUE, xscale = 365.25, xlab = "Years", ylab = "Survival", lty = 2:3)
 title("Kaplan-Meier estimate for\nsecMalASCT study", "Survival after transplantation")
 legend(100, .9, c("Female", "Male"), lty = 2:3)
 dev.off()