Prevalence, Course, and Determinants of Suicide Ideation and Attempts in Patients with a Depressive And/or Anxiety Disorder: A Review of NESDA Findings.

•Prevalence of suicide ideation and attempt highest in comorbid depression and anxiety.•Suicide ideation recurrent in almost quarter of depression and anxiety respondents.•Suicide ideation and attempt are complex multifactorial phenomena.•Immune system and brain activity abnormalities and genetic risk link to suicidality.•Difficult to differentiate suicide attempt from suicide ideation.