The impact of adverse childhood experiences on multimorbidity: a systematic review and meta-analysis

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Abstract

Background
Adverse childhood experiences (ACEs) have been implicated in the aetiology of a range of health outcomes, including multimorbidity. In this systematic review and meta-analysis, we aimed to identify, synthesise,and quantify the current evidence linking ACEs and multimorbidity.

Methods
We searched seven databases from inception to 20 July 2023: APA PsycNET, CINAHL Plus, Cochrane CENTRAL,Embase, MEDLINE, Scopus, and Web of Science. We selected studies investigating adverse events occurring duringchildhood (< 18 years) and an assessment of multimorbidity in adulthood (≥ 18 years). Studies that only assessedadverse events in adulthood or health outcomes in children were excluded. Risk of bias was assessed using the ROBINS-E tool. Meta-analysis of prevalence and dose–response meta-analysis methods were used for quantitative datasynthesis. This review was pre-registered with PROSPERO (CRD42023389528).

Results
From 15,586 records, 25 studies were eligible for inclusion (total participants = 372,162). The prevalenceof exposure to ≥ 1 ACEs was 48.1% (95% CI 33.4 to 63.1%). The prevalence of multimorbidity was 34.5% (95% CI 23.4to 47.5%). Eight studies provided sufficient data for dose–response meta-analysis (total participants = 197,981). Therewas a significant dose-dependent relationship between ACE exposure and multimorbidity (p < 0.001), with everyadditional ACE exposure contributing to a 12.9% (95% CI 7.9 to 17.9%) increase in the odds for multimorbidity. However,there was heterogeneity among the included studies (I2 = 76.9%, Cochran Q = 102, p < 0.001).

Conclusions 
This is the first systematic review and meta-analysis to synthesise the literature on ACEs and multimorbidity,showing a dose-dependent relationship across a large number of participants. It consolidates and enhancesan extensive body of literature that shows an association between ACEs and individual long-term health conditions,risky health behaviours, and other poor health outcomes.
Original languageEnglish
Article number315
Number of pages14
JournalBMC Medicine
Volume22
DOIs
Publication statusPublished - 15 Aug 2024

Keywords

  • Adverse childhood experiences
  • Childhood adversity
  • Chronic disease
  • Long-term conditions
  • Multimorbidity

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