# Chapter 10 Time-to-event data and survival

The reports of my death have been greatly exaggerated.
Mark Twain

In healthcare, we deal with a lot of binary outcomes. Death yes/no or disease recurrence yes/no for instance. These outcomes are often easily analysed using binary logistic regression as described in the previous chapter.

When the time taken for the outcome to occur is important, we need a different approach. For instance, in patients with cancer, the time taken until recurrence of the cancer is often just as important as the fact it has recurred.