Maternal experiences of childhood adversity can increase the risk of emotional and behavioural problems in their children. This systematic review and meta-analysis provide the first narrative and quantitative synthesis of the mediators and moderators involved in the link between maternal childhood adversity and children's emotional and behavioural development. We searched EMBASE, PsycINFO, Medline, Cochrane Library, grey literature and reference lists. Studies published up to February 2021 were included if they explored mediators or moderators between maternal childhood adversity and their children's emotional and behavioural development. Data were synthesised narratively and quantitatively by meta-analytic approaches. The search yielded 781 articles, with 74 full-text articles reviewed, and 41 studies meeting inclusion criteria. Maternal mental health was a significant individual-level mediator, while child traumatic experiences and insecure maternal–child attachment were consistent family-level mediators. However, the evidence for community-level mediators was limited. A meta-analysis of nine single-mediating analyses from five studies indicated three mediating pathways: maternal depression, negative parenting practices and maternal insecure attachment, with pooled indirect standardised effects of 0.10 [95% CI (0.03–0.17)), 0.01 (95% CI (−0.02 to 0.04)] and 0.07 [95% CI (0.01–0.12)], respectively. Research studies on moderators were few and identified some individual-level factors, such as child sex (e.g. the mediating role of parenting practices being only significant in girls), biological factors (e.g. maternal cortisol level) and genetic factors (e.g. child's serotonin-transporter genotype). In conclusion, maternal depression and maternal insecure attachment are two established mediating pathways that can explain the link between maternal childhood adversity and their children's emotional and behavioural development and offer opportunities for intervention.

From 2014 to 2020, we compiled radiocarbon ages from the lower 48 states, creating a database of more than 100,000 archaeological, geological, and paleontological ages that will be freely available to researchers through the Canadian Archaeological Radiocarbon Database. Here, we discuss the process used to compile ages, general characteristics of the database, and lessons learned from this exercise in “big data” compilation.

That older people should be consumers and active agents has dominated policy discourse across health, social care and housing that has a core care function. This discourse has some established and long-standing critics, such as Gilleard and Higgs, and yet the central question(s) a consumerist discourse raises remains surprisingly relevant today. The purpose of this forum article is to reconsider the viability of active agency amongst older people in the context of empirical research on information-giving across health, social care and housing that has been published since the paper by Gilleard and Higgs in 1998. Information-giving is the key consumer choice mechanism, and yet research is currently located in separate literatures. Giving these separate fields some coherence engages with and provides important empirical commentary. There is little or no evidence that information alone triggers active agency for older people in regard to their health, social care or housing. However, there is consistent evidence that discussion, deliberation and dialogue – or the practices associated with Habermas’ theory of communicative action – are desirable to older people in the context of active agency. More research is needed to demonstrate efficacy beyond communicative approaches being desirable.