Physical aggression towards others in adults with learning disabilities: prevalence and associated factors.
One in seven adults on a community LD register show frequent or severe physical aggression, and their carers feel close to breaking point.
01Research in Context
What this study did
Tyrer et al. (2006) looked at every adult on one community learning-disability register.
They asked carers how often and how hard the person hit, kicked or hurt others.
The team also recorded age, sex, disability level, home type and carer stress.
What they found
One in seven adults showed frequent or severe physical aggression.
Carers of those adults were three times more likely to feel they could not cope.
Male sex, younger age, greater disability and living in a facility raised the risk.
How this fits with other research
Eberhart et al. (2006) surveyed over 3,000 adults the same year. They found about half showed some aggression, but most was mild yelling, not hits. The two studies fit like puzzle pieces: lots of yelling, fewer serious blows.
Jennett et al. (2003) pooled 22 earlier studies. Their meta-analysis agrees that being male and having severe ID raises aggression risk. F et al. give fresh numbers that sit inside their bigger picture.
de Kuijper et al. (2014) later used the same Scottish register. They showed that extra mental or physical health problems raise aggression odds. This extends F et al. by pointing to treatable health triggers you can screen for.
Why it matters
You now have a quick benchmark: expect serious physical aggression in roughly one of every seven adult-ID referrals. When you see it, check for carer strain first—their coping drops sharply. Add a brief health screen for pain, mood or sleep issues; later work shows these amplify risk. Target your behavior plan and carer support to that 14%, not the whole caseload.
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02At a glance
03Original abstract
BACKGROUND: Many people with learning disabilities (LD) show aggressive behaviour, but the extent of the problem and its associated factors and effects are unclear. METHODS: A cross-sectional analysis was carried out using interview data from 3065 adults with LD on the Leicestershire LD Register. Physical aggression towards others was defined as carers reporting frequent (more than three times per week) and/or severe episodes. Individuals with and without aggression were compared using multiple logistic regression models for potential physical and psychological factors. RESULTS: Carers reported that 443 (14%) of adults were physically aggressive towards others. Men (P = 0.001), younger individuals (P < 0.001), people with more severe LD (P < 0.001) and those in institutional settings (P < 0.001) had a significantly higher prevalence of physical aggression. People with Down syndrome had a lower prevalence of physical aggression (P < 0.001). After adjustment, we found no relationship between aggression and the presence of epilepsy or autism. Among psychological factors, symptoms of frustration (P < 0.001) and mood swings (P < 0.001) were associated with higher levels of aggression. Failure to cope among carers was reported by 14% overall: 42% of people caring for adults with aggression said they were unable to cope compared with 10% of those caring for adults without aggression. CONCLUSIONS: Physical aggression towards other people presents a significant challenge to carers of adults with LD. Further research is needed to identify aetiological factors with a view to finding effective interventions to reduce, and improve management of, this behaviour.
Journal of intellectual disability research : JIDR, 2006 · doi:10.1111/j.1365-2788.2005.00774.x