Use of 'acute behavioural disturbance' in mental health records: differences over time and by ethnicity in a London NHS mental health Trust.

Background: Acute behavioural disturbance (ABD) is a controversial descriptor for presentations of severe agitation, aggression and physiological compromise.

Aims: To characterise the use of ABD-related terms in the electronic record of a large UK provider of mental health services during 2006-2021.

Method: The free text of all records relating to patient contacts with acute assessment mental health teams during 2006-2021 were searched for references to ABD.

Covid-19, social restrictions, and mental distress among young people: a UK longitudinal, population-based study.

Background: Adolescence is a critical period for social and emotional development. We sought to examine the impacts of Covid-19 and related social restrictions and school closures on adolescent mental health, particularly among disadvantaged, marginalised, and vulnerable groups.

Methods: We analysed four waves of data - 3 pre-Covid-19 (2016-2019) and 1 mid-Covid-19 (May-Aug 2020; n, 1074; 12-18 years old, >80% minority ethnic groups, 25% free school meals) from REACH (Resilience, Ethnicity, and AdolesCent Mental Health), an adolescent cohort based in inner-London, United Kingdom.