English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We analyse an issue when comparing survival curves between two subgroups. Weshow that there is a direct relationship between estimates of subgroups'survival at a time point and positive and negative predictive values in thebinary classification settings. Our findings present a case where currentmethods of comparing survival curves between subgroups may be misleading. Wethink that this ought to be taken into account during the validation ofprognostic diagnostic tests that predict two prognostic subgroups for a givendisease or treatment, when the validation data set consists of censored data.

Why comparing survival curves between two subgroups may be misleading