We describe the incidence of suicidality (2007-2017) in people with depression treated by secondary mental healthcare services at South London and Maudsley NHS Trust (n = 26 412). We estimated yearly incidence of 'suicidal ideation' and 'high risk of suicide' from structured and free-text fields of the Clinical Record Interactive Search system. The incidence of suicidal ideation increased from 0.6 (2007) to 1 cases (2017) per 1000 population. The incidence of high risk of suicide, based on risk forms, varied between 0.06 and 0.50 cases per 1000 adult population (2008-2017). Electronic health records provide the opportunity to examine suicidality on a large scale, but the impact of service-related changes in the use of structured risk assessment should be considered.

Original languageEnglish
Article numbere223
JournalBJPsych Open
Issue number6
Publication statusPublished - 24 Nov 2021


  • Depression
  • Electronic health records
  • High risk of suicide
  • Incidence
  • Suicidal ideation


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