TABLE 1.

Eligibility criteria for inclusion of studies in the review.

	Inclusion criteria	Exclusion criteria
Population	• Pregnant women and/or women during the first 12 months following birth (perinatal period). • From any location. • With or without a psychiatric diagnosis. • Women aged 18 years and over. For studies that included a mixed sample of adolescents and adults, the mean or median age of the sample needed to be 18 years or older. • Both inpatient and community samples.	• Women who had suffered a miscarriage or stillbirth, following a termination of pregnancy for any reason or ectopic pregnancies. • Adolescents (less than 18 years).
Intervention (exposure)	• Psychological/psychosocial risk factors. • Assessed using any objective or subjective measure.	• Investigate the presence of mental health problems (e.g., psychosis, major depressive disorder) but with no measurement of psychological and/or psychosocial factors.
Comparison	• Exposure versus non-exposure to the psychological/psychosocial risk factor(s) of interest.	• Purely descriptive studies (e.g., case report studies).
Outcome	• Suicide, which can include: – Suicide deaths – Suicide attempts – Suicidal ideation – Suicide planning – Self-harm ideation – Self-harm with suicidal intent or suicidal intent is unclear • Assessed using any objective or subjective measure.	• A focus on non-suicidal self-injury.
Study design	• Report original quantitative findings.	• Report qualitative findings only. • Reviews, practice recommendations or guidelines, comments, replies, letters, and opinion/position papers.