Norwegian Triple-S Cohort Study: a large longitudinal study of children and adolescents exposed to maltreatment and their caregivers – cohort profile
Abstract
Abstract Purpose Childhood maltreatment is common and associated with a wide range of adverse outcomes, yet few large, well-designed longitudinal studies follow children and adolescents with substantiated maltreatment over time. The Norwegian Triple-S Cohort Study was established to recruit and follow children and adolescents, together with their non-offending caregiver, to identify key risk and resilience factors and understand long-term health and functioning. Participants The cohort invites children and adolescents aged 5–18 years with substantiated maltreatment, including physical abuse, emotional abuse, sexual abuse, neglect or exposure to domestic violence. Participants attend the Stine Sofie Centre, a national learning and coping centre for families affected by maltreatment in Norway. At intake, both the child/adolescent and the non-offending caregiver are invited to participate. Participants are followed at regular intervals after enrolment, typically at 2-year intervals, and, with consent, survey data can be linked to national health, education, employment and social welfare registries. As of June 2026, 733 caregivers and 325 adolescents aged 12–18 years had completed baseline questionnaires. Recruitment is ongoing and will continue until the cohort reaches approximately 1500 participating children and adolescents. Findings to date Data collection includes information on children and adolescents’ maltreatment type, mental and somatic health, behavioural and…
How strong is the evidence?
Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 1,500 participants or records.
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