Markers for aggression in inpatient treatment facilities for adults with mild to borderline intellectual disability.

Tenneij et al. (2009) looked at adults with mild or borderline intellectual disability living in inpatient units. They wanted to know which behaviors tip staff off that a big aggressive outburst is coming.

The team checked records for five red-flag areas: antisocial acts, poor impulse control, psychotic signs, mood problems, and self-harm. They asked, 'Do these markers predict severe aggression later?'

All five flags mattered. If a client showed antisocial moves, snapped quickly, had mood swings, heard voices, or hurt themselves, the risk of later serious aggression jumped.

In plain words, when you see any of those five signals, tighten your safety plan.

de Kuijper et al. (2014) widened the lens. They studied adults with ID living at home, not in hospitals, and added physical-health problems to the list. More illness still meant more aggression, so the five-marker rule travels outside the ward.

Jennett et al. (2003) pooled 22 older studies. They said, 'Look at males, severe ID, autism, and poor talking skills.' H et al. keep the impulse piece but add mood, psychosis, and self-injury for mild-borderline inpatients. The new list is sharper for that group.

Cramm et al. (2009) seems to clash. They found impulse-control problems predict aggression only in children, not adults. The two papers share the same year and the same predictor. The fix: age matters. Impulse-control stays on the adult checklist because H et al. showed it works there too, but remember the marker may weigh less in kids.

You can fold this into your intake form today. Circle any client with antisocial behavior, impulse slips, mood signs, psychotic symptoms, or self-injury. Put those five on a quick daily rating. When two or more show up, add extra staff, shorten demands, and pre-teach coping skills. It is a low-tech screener that can cut injury and keep treatment on track.