Originalsprog | Engelsk |
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Titel | International Encyclopedia of the Social & Behavioral Sciences |
Redaktører | James D. Wright |
Antal sider | 5 |
Forlag | Elsevier Science Inc. |
Publikationsdato | 2015 |
Udgave | 2nd |
Sider | 771-775 |
ISBN (Trykt) | 9780080970868 |
ISBN (Elektronisk) | 9780080970875 |
DOI | |
Status | Udgivet - 2015 |
Abstract
Survival analysis is the study of the distribution of time-to-event data, that is, the times from an initiating event to some terminal event. A distinguishing feature of survival data is the occurrence of right censoring, where the terminal event for some individuals is not observed; instead, it is only known that this event is at least later than a given point in time. This article presents a brief historical review and focuses on central statistical approaches: non- and semiparametric estimation (Kaplan-Meier, Cox regression) and hypothesis testing (log-rank). We also add brief comments on parametric models and list some important reference works.